'Joshua Tree' elevated U2 to superstar status internationally, and confirmed their position as one of rock's most influential and powerful forces. Here we examine the making of the album, with the four group members, along with producers Brian Eno, Steve Lillywhite, and Daniel Lanois. Elvis Costello is also on hand to lend friendly comments.

• Robby Krieger
• Daniel Lanois
• Tom Petty