Class of '99 was a short-term alternative rock supergroup consisting of members from notable rock bands: Layne Staley of Alice in Chains as the vocalist, Tom Morello of Rage Against the Machine as lead guitarist, Stephen Perkins of Jane's Addiction as the drummer, and Martyn LeNoble of Porno for Pyros as bass guitarist. They also had the help of Matt Serletic on keyboards.

These four musicians collaborated to cover Pink Floyd's "Another Brick in the Wall (Part 2)" (as well as "Another Brick in the Wall (Part 1)") for the soundtrack to Robert Rodriguez's 1998 science-fiction horror film, The Faculty. Contrary to rumors and popular belief, the four musicians collaborated solely to cover the songs for the film and did not create a band or intend on releasing other new material.