Overview of 'The Tonight Show with Jay Leno' Season 20

Episode 1 - Whitney Cummings, Nicole

Release Date: 2012-01-03

Episode 2 - Tracy Morgan, Rick & Corey Harrison, Shaggy

Release Date: 2012-01-04

Episode 3 - Michelle Williams, Josh Lucas, Chris Cornell

Release Date: 2012-01-05

Episode 4 - Glenn Close, Trevor Noah, Van Hunt

Release Date: 2012-01-06

Episode 5 - Janet Jackson, Larry the Cable Guy, Eli Young Band

Release Date: 2012-01-09

Episode 6 - Queen Latifah, Paul

Release Date: 2012-01-10

Episode 7 - Liam Neeson, Jack's Mannequin

Release Date: 2012-01-11

Episode 8 - Gerard Butler, Betty White

Release Date: 2012-01-12

Episode 9 - Tilda Swinton, Jennifer Hudson, Graffiti6

Release Date: 2012-01-13

Episode 10 - Sam Worthington, Sherri Shepherd, Adam Lambert

Release Date: 2012-01-17

Episode 11 - Jennifer Garner, Ross Matthews, Parachute

Release Date: 2012-01-18

Episode 12 - Wanda Sykes

Release Date: 2012-01-19

Episode 13 - Steven Tyler, Ryan Seacrest, Randy Jackson, Sarah Colonna

Release Date: 2012-01-20

Episode 14 - Madonna, Chris Colfer, Joe Perry

Release Date: 2012-01-30

Episode 15 - Michelle Obama, Mark Harmon, Imelda May

Release Date: 2012-01-31

Episode 16 - Daniel Radcliffe, Vanessa Hudgens, Evanescence

Release Date: 2012-02-01

Episode 17 - Drew Barrymore, Blake Shelton

Release Date: 2012-02-02

Episode 18 - Debra Messing, Jean Dujardin, Bush

Release Date: 2012-02-03

Episode 19 - Dwayne Johnson, Miranda Cosgrove, Cirque du Soleil

Release Date: 2012-02-06

Episode 20 - Chelsea Handler, Jon Huntsman, 2Cellos

Release Date: 2012-02-07

Episode 21 - Chris Pine, Lisa Lampanelli, Anthony Hamilton

Release Date: 2012-02-08

Episode 22 - Denzel Washington, Octavia Spencer, Estelle

Release Date: 2012-02-09

Episode 23 - Rachel McAdams, Cee-Lo Green

Release Date: 2012-02-10

Episode 24 - Jennifer Lopez, the Civil Wars

Release Date: 2012-02-13

Episode 25 - Tyler Perry, Alexandra Wentworth, the Cranberries

Release Date: 2012-02-14

Episode 26 - Bill Maher, Punch Brothers

Release Date: 2012-02-15

Episode 27 - Amanda Seyfried, Billy Gardell, Monica, Brandy

Release Date: 2012-02-16

Episode 28 - Christina Aguilera, Dave Salmoni, The Fray

Release Date: 2012-02-17

Episode 29 - Taylor Swift, Michael Clarke Duncan, Robert Randolph, Los Lobos, Chris Layton

Release Date: 2012-02-20

Episode 30 - Bill O'Reilly, Rob Riggle, Rumer

Release Date: 2012-02-21

Episode 31 - Tim Allen, Rocket City Rednecks

Release Date: 2012-02-22

Episode 32 - Meredith Vieira, Jackson Murphy

Release Date: 2012-02-23

Episode 33 - Jennifer Aniston, Adam Levine

Release Date: 2012-02-24

Episode 34 - Megan Fox, Michel Hazanavicius, Mariachi El Bronx

Release Date: 2012-02-27

Episode 35 - Rob Schneider, Khloe Kardashian Odom, Mona

Release Date: 2012-02-28

Episode 36 - Sen. John McCain, Elizabeth Olsen, Romeo Santos

Release Date: 2012-02-29

Episode 37 - Julianne Moore, Dr. Brady Barr, Chickenfoot

Release Date: 2012-03-01

Episode 38 - Emily Blunt, Geoff Stults, Scars on 45

Release Date: 2012-03-02

Episode 39 - Jessica Simpson, Adam Carolla, Soja

Release Date: 2012-03-12

Episode 40 - Jonah Hill, Bethenny Frankel, Shooter Jennings

Release Date: 2012-03-13

Episode 41 - Channing Tatum, Drew Brees, Meat Loaf

Release Date: 2012-03-14

Episode 42 - Kiefer Sutherland, Kathryn Hahn, Andy Grammer

Release Date: 2012-03-15

Episode 43 - Jimmy Fallon, 8-year-old presidential whiz kid H.L. McCullough, Toby Keith

Release Date: 2012-03-16

Episode 44 - Jamie Lee Curtis, Armie Hammer

Release Date: 2012-03-19

Episode 45 - Rep. Ron Paul, Frank Caliendo, the Wanted

Release Date: 2012-03-20

Episode 46 - Kim Kardashian

Release Date: 2012-03-21

Episode 47 - Arsenio Hall, Lily Collins

Release Date: 2012-03-22

Episode 48 - Christina Aguilera, Melanie Fiona featuring J. Cole

Release Date: 2012-03-23

Episode 49 - Elizabeth Banks, Carson Daly

Release Date: 2012-03-26

Episode 50 - The Pierces

Release Date: 2012-03-27

Episode 51 - Rainn Wilson, Debbie Gibson, Gavin DeGraw

Release Date: 2012-03-28

Episode 52 - Piers Morgan, Liam Hemsworth, Mat Kearney

Release Date: 2012-03-29

Episode 53 - Nicole Richie, Alan Jackson

Release Date: 2012-03-30

Episode 54 - Betty White, D.J. Pauly D

Release Date: 2012-04-02

Episode 55 - Maya Rudolph, Jason Biggs, Gym Class Heroes

Release Date: 2012-04-03

Episode 56 - David Gregory, Cee-Lo Green, Seal

Release Date: 2012-04-04

Episode 57 - Zac Efron, Jennie Garth, Grace Potter and the Nocturnals

Release Date: 2012-04-05

Episode 58 - Kristin Chenoweth, Julie Scardina, Rodrigo y Gabriela

Release Date: 2012-04-06

Episode 59 - Jane Lynch, Kevin Hart, Esperanza Spalding

Release Date: 2012-04-09

Episode 60 - Josh Hutcherson, Rachel Maddow, Eric Turner featuring Lupe Fiasco and Tinie Tempah

Release Date: 2012-04-10

Episode 61 - Albert Brooks, Austin

Release Date: 2012-04-11

Episode 62 - Blake Shelton, Chris Diamantopoulos, Feist

Release Date: 2012-04-12

Episode 63 - Jason Segel, Anna Faris, Far East Movement

Release Date: 2012-04-13

Episode 64 - Jesse Tyler Ferguson, Aubrey O'Day, Train

Release Date: 2012-04-23

Episode 65 - Jack Black, Daniel Holzman & Michael Chernow, Beirut

Release Date: 2012-04-24

Episode 66 - Adam Levine, Ziggy Marley

Release Date: 2012-04-25

Episode 67 - Diane Keaton, Natalie Coughlin, Moby

Release Date: 2012-04-26

Episode 68 - Mel Gibson, the Wanted

Release Date: 2012-04-27

Episode 69 - Steve Martin, Rashida Jones, Steve Martin & the Steep Canyon Rangers

Release Date: 2012-04-30

Episode 70 - Cameron Diaz, William Shatner, Lee Brice

Release Date: 2012-05-01

Episode 71 - Scarlett Johansson, Blake Shelton, K'Naan featuring Nelly Furtado

Release Date: 2012-05-02

Episode 72 - Robert Downey Jr., Katharine McPhee, Toast To Freedom

Release Date: 2012-05-03

Episode 73 - Kristen Stewart, James Morrison

Release Date: 2012-05-04

Episode 74 - Michelle Pfeiffer, Bear Grylls, Snow Patrol

Release Date: 2012-05-07

Episode 75 - Rick Santorum, Taylor Kitsch, B.o.B., O.A.R.

Release Date: 2012-05-08

Episode 76 - Garry Shandling, Alison Brie, the winner of 'The Voice'

Release Date: 2012-05-09

Episode 77 - Howie Mandel, Vinny Guadagnino, Sara Watkins

Release Date: 2012-05-10

Episode 78 - Jenna Fischer, Jay Mohr

Release Date: 2012-05-11

Episode 79 - Kourtney, Kim & Khloe Kardashian, Donny Deutsch, Karmin

Release Date: 2012-05-14

Episode 80 - Wanda Sykes, David Hasselhoff, Santana

Release Date: 2012-05-15

Episode 81 - Joel McHale, Jarod Miller, Bobby Brown

Release Date: 2012-05-16

Episode 82 - Hugh Laurie, Robert Griffin III

Release Date: 2012-05-17

Episode 83 - Sherri Shepherd, Julianne Hough, Tenacious D

Release Date: 2012-05-18

Episode 84 - Kevin Costner, Bailee Madison, Lisa Marie Presley

Release Date: 2012-05-21

Episode 85 - Josh Brolin, Ali Wentworth, Glenn Frey

Release Date: 2012-05-22

Episode 86 - Charlize Theron, Jeffrey Dean Morgan, Juanes

Release Date: 2012-05-23

Episode 87 - Glenn Close, the winner of American Idol, Nelly Furtado

Release Date: 2012-05-24

Episode 88 - Gen. Colin Powell, Greg Gadson, All American Rejects

Release Date: 2012-05-25

Episode 89 - Martin Short, Aubrey Plaza, Def Leppard

Release Date: 2012-06-04

Episode 90 - Emma Stone, Chris Hemsworth, Chris Robinson Brotherhood

Release Date: 2012-06-05

Episode 91 - Julia Louis-Dreyfus, the Beach Boys

Release Date: 2012-06-06

Episode 92 - Catherine Zeta-Jones, Louis Zamperini, Bret Michaels

Release Date: 2012-06-07

Episode 93 - Tom Cruise, skydivers Felix Baumgartner & Joe Kittinger, Kool & the Gang

Release Date: 2012-06-08

Episode 94 - Elizabeth Banks, Dan Patrick, Brandi Carlisle

Release Date: 2012-06-11

Episode 95 - Patrick Duffy, Linda Grey, Larry Hagman, Meghan McCain, Meiko

Release Date: 2012-06-12

Episode 96 - Terry Bradshaw, Ernie Brown Jr., Neal James, Rachel Bradshaw

Release Date: 2012-06-13

Episode 97 - Penelope Cruz, Rick Harrison, We Are Augustines

Release Date: 2012-06-14

Episode 98 - Salma Hayek, Adam Brody, Olly Murs

Release Date: 2012-06-15

Episode 99 - Steve Carell, Cory Booker, Glen Hansard

Release Date: 2012-06-18

Episode 100 - Matthew McConaughey, Natasha Leggero, Grouplove

Release Date: 2012-06-19

Episode 101 - Andy Samberg, Seth MacFarlane, Joe Henry featuring Lisa Hannigan

Release Date: 2012-06-20

Episode 102 - Katy Perry, Needtobreathe

Release Date: 2012-06-21

Episode 103 - Chris Pine, Rachael Ray, Everclear

Release Date: 2012-06-22

Episode 104 - Louis C.K., Lolo Jones, Delta Rae

Release Date: 2012-06-25

Episode 105 - Matt LeBlanc, Sig Hansen & Keith Colburn, Robin Thicke

Release Date: 2012-06-26

Episode 106 - Mila Kunis, Jim Norton, Justin Bieber

Release Date: 2012-06-27

Episode 107 - Tyler Perry, Rhys Ifans, Keane

Release Date: 2012-06-28

Episode 108 - Andrew Garfield, Of Monsters And Men

Release Date: 2012-06-29

Episode 109 - Wanda Sykes, Rob Riggle, Kimbra

Release Date: 2012-07-09

Episode 110 - Zachary Levi, B.o.B.

Release Date: 2012-07-10

Episode 111 - Morgan Freeman,

Release Date: 2012-07-11

Episode 112 - Denis Leary, Olivia Munn, Kenny Chesney

Release Date: 2012-07-12

Episode 113 - Dana Carvey, Nicki Minaj

Release Date: 2012-07-13

Episode 114 - Charlie Sheen

Release Date: 2012-07-16

Episode 115 - Kate Beckinsale, Adam Carolla

Release Date: 2012-07-17

Episode 116 - Newt Gingrich, Nicole

Release Date: 2012-07-18

Episode 117 - Rachel Weisz, Aaron Paul

Release Date: 2012-07-19

Episode 118 - Ben Stiller, Rose Byrne, Missy Higgins

Release Date: 2012-07-20

Episode 119 - Vince Vaughn, Travis Pastrana, Aretha Franklin

Release Date: 2012-07-23

Episode 120 - Colin Farrell, Jenni

Release Date: 2012-07-24

Episode 121 - Jessica Biel, Kevin Smith, the Lumineers

Release Date: 2012-07-25

Episode 122 - Julie Scardina, Dwyane Wade, MoZella

Release Date: 2012-07-26

Episode 123 - Jeremy Renner, Betty White, Joss Stone

Release Date: 2012-07-27

Episode 124 - Michelle Obama, Norah Jones

Release Date: 2012-08-13

Episode 125 - Kelsey Grammer, Jordan Burroughs, Ryan Star

Release Date: 2012-08-14

Episode 126 - Sylvester Stallone, Missy Franklin, Dwight Yoakam

Release Date: 2012-08-15

Episode 127 - Kristen Bell, Ryan Lochte, Regina Spektor

Release Date: 2012-08-16

Episode 128 - Jason Statham, Allyson Felix, the Offspring

Release Date: 2012-08-17

Episode 129 - Maya Rudolph, Jeff Foxworthy, Morning Parade

Release Date: 2012-08-20

Episode 130 - Shia LaBeouf, Jean-Claude Van Damme, fun.

Release Date: 2012-08-21

Episode 131 - Katie Couric, Dax Shepard, Emeli Sande

Release Date: 2012-08-22

Episode 132 - Kirsten Dunst, Chris Matthews, Smashing Pumpkins

Release Date: 2012-08-23

Episode 133 - Howie Mandel, Alejandro Escovedo

Release Date: 2012-08-24

Episode 134 - Dennis Miller, Joshua Radin

Release Date: 2012-08-27

Episode 135 - Owl City with Carly Rae Jepsen

Release Date: 2012-08-28

Episode 136 - Bill Maher, Tristan Prettyman

Release Date: 2012-08-29

Episode 137 - Savannah Guthrie, Dolph Lundgren

Release Date: 2012-08-30

Episode 138 - Lauren Graham, Dan Patrick

Release Date: 2012-08-31

Episode 139 - Kevin Hart, Rep. Ron Paul, Robert Cray

Release Date: 2012-09-04

Episode 140 - Adam Levine, Magic Johnson, Grace Potter

Release Date: 2012-09-05

Episode 141 - Ellen DeGeneres, Josh Lucas, Billy Ray Cyrus

Release Date: 2012-09-06

Episode 142 - Matthew Perry, Meghan McCain, OneRepublic

Release Date: 2012-09-07

Episode 143 - Richard Gere, Anthony Robles, Rascal Flatts

Release Date: 2012-09-17

Episode 144 - Justin Timberlake, Steve Nash, Ryan Bingham

Release Date: 2012-09-18

Episode 145 - Amy Poehler, Joe Scarborough, Big & Rich

Release Date: 2012-09-19

Episode 146 - Viola Davis, Paul Wesley, Bonnie Raitt

Release Date: 2012-09-20

Episode 147 - Zooey Deschanel, Anthony Anderson, ZZ Top

Release Date: 2012-09-21

Episode 148 - David Spade, Giancarlo Esposito, Rebecca Ferguson

Release Date: 2012-09-24

Episode 149 - Ann Romney, Seth MacFarlane, Bettye LaVette

Release Date: 2012-09-25

Episode 150 - Kirstie Alley, Mike

Release Date: 2012-09-26

Episode 151 - Liam Neeson, Lisa Lampanelli, the Gaslight Anthem

Release Date: 2012-09-27

Episode 152 - Christina Aguilera, Sherri Shepherd, the Piano Guys

Release Date: 2012-09-28

Episode 153 - Bryan Cranston, Rebel Wilson, Cher Lloyd

Release Date: 2012-10-01

Episode 154 - Carol Burnett, Armie Hammer, Lang Lang

Release Date: 2012-10-02

Episode 155 - Christina Applegate, Apolo Anton Ohno

Release Date: 2012-10-03

Episode 156 - Ben Affleck, Octavia Spencer, Neon Trees

Release Date: 2012-10-04

Episode 157 - Colin Farrell, Medal of Honor recipient Dakota Meyer, the Hives

Release Date: 2012-10-05

Episode 158 - Arnold Schwarzenegger, Bubba Watson, the Wallflowers

Release Date: 2012-10-08

Episode 159 - Tyler Perry, Oscar Pistorius, Plain White T's

Release Date: 2012-10-09

Episode 160 - Chelsea Handler, Placido Domingo

Release Date: 2012-10-10

Episode 161 - Terry Bradshaw, Mark Kelly, Grizzly Bear

Release Date: 2012-10-11

Episode 162 - Whitney Cummings, Rove McManus, the Script

Release Date: 2012-10-12

Episode 163 - Halle Berry, Ali Wentworth, Gary Clark Jr.

Release Date: 2012-10-22

Episode 164 - Denzel Washington, Richard Engel, M. Ward

Release Date: 2012-10-23

Episode 165 - President Barack Obama, No Doubt

Release Date: 2012-10-24

Episode 166 - Russell Brand, Jane Lynch

Release Date: 2012-10-25

Episode 167 - Sarah Silverman, Paula Deen

Release Date: 2012-10-26

Episode 168 - Simon Cowell, Britney Spears, Billy Gardell, Two Door Cinema Club

Release Date: 2012-10-29

Episode 169 - John C. Reilly, Jenni

Release Date: 2012-10-30

Episode 170 - Taylor Lautner, Lior Suchard, Macy Gray

Release Date: 2012-10-31

Episode 171 - Jamie Lee Curtis, Maggie Elizabeth Jones, ZZ Ward

Release Date: 2012-11-01

Episode 172 - Marion Cotillard, Olate Dogs

Release Date: 2012-11-02

Episode 173 - Kristen Stewart, Dax Shepard, Kip Moore

Release Date: 2012-11-05

Episode 174 - Daniel Craig, Dave Salmoni, Diamond Rings

Release Date: 2012-11-07

Episode 175 - Sally Field, Chris Matthews, Lord Huron

Release Date: 2012-11-08

Episode 176 - Meredith Vieira & Richard Cohen, Christina Perri

Release Date: 2012-11-09

Episode 177 - Lea Michele, Nev Schulman, Toby Keith

Release Date: 2012-11-12

Episode 178 - Keira Knightley, Whitney Cummings, Gin Wigmore

Release Date: 2012-11-13

Episode 179 - Helen Hunt, Paul

Release Date: 2012-11-14

Episode 180 - Tim Allen, Nolan Gould, Switchfoot

Release Date: 2012-11-15

Episode 181 - Chris Matthews, the Mowgli's

Release Date: 2012-11-16

Episode 182 - Jennifer Lawrence, Phil & Willie Robertson, Andy Grammer

Release Date: 2012-11-19

Oscar-nominated actress Jennifer Lawrence; from “Duck Dynasty”, Phil & Willie Robertson; music from Andy Grammer.

Episode 183 - Lindsay Lohan, David Gregory, Wanda Jackson

Release Date: 2012-11-20

Episode 184 - Joseph Gordon-Levitt, Kris Jenner, Dan Cummings

Release Date: 2012-11-21

Episode 185 - Bradley Cooper, Natasha Leggero, PSY

Release Date: 2012-11-22

Episode 186 - Jim Parsons, Maggie Elizabeth Jones, Delta Rae

Release Date: 2012-11-26

Episode 187 - Julie Bowen,

Release Date: 2012-11-27

Episode 188 - Wanda Sykes, Blake Shelton

Release Date: 2012-11-28

Episode 189 - Newt Gingrich, Ron Shirley, Grouplove

Release Date: 2012-11-29

Episode 190 - Marisa Tomei, Carson Daly, Il Volo

Release Date: 2012-11-30

Episode 191 - Gerard Butler, Olivia Munn, the Polyphonic Spree

Release Date: 2012-12-03

Episode 192 - Khloe Kardashian Odom, Adam Carolla, Matisyahu

Release Date: 2012-12-04

Episode 193 - Don Johnson, Julie Scardina, Darius Rucker

Release Date: 2012-12-05

Episode 194 - Bill O'Reilly, Krysten Ritter, Paloma Faith

Release Date: 2012-12-06

Episode 195 - Leslie Mann, Jim Rome, Garbage

Release Date: 2012-12-07

Episode 196 - Matt Damon, Chris Pratt, Of Monsters And Men

Release Date: 2012-12-10

Episode 197 - Ewan McGregor, Bailee Madison, Allen Stone

Release Date: 2012-12-11

Episode 198 - Albert Brooks, Kerry Washington, Willy Moon

Release Date: 2012-12-12

Episode 199 - Hugh Jackman, Maria Sharapova, J.D. McPherson

Release Date: 2012-12-13

From "Les Misérables", Actor Hugh Jackman; magician Justin Willman; music act JD McPherson. Maria Sharapova preempted.

Episode 200 - Bette Midler, Judd Apatow, Pentatonix

Release Date: 2012-12-14

Episode 201 - Megan Fox, Johnny Manziel, Colbie Caillat

Release Date: 2012-12-17

Episode 202 - Quentin Tarantino, LeAnn Rimes

Release Date: 2012-12-18

Episode 203 - Jamie Foxx, Carl Reiner, the winner of

Release Date: 2012-12-19

Episode 204 - Katherine Heigl, Marjorie Johnson, Johnny Mathis

Release Date: 2012-12-20

Episode 205 - Terry Bradshaw, Elle Fanning, Chris Mann

Release Date: 2012-12-21