Jennifer Lopez, Ryan Seacrest, Steven Tyler, and Randy Jackson in American Idol (2002)

Jennifer Lopez, Jimmy Iovine, Ryan Seacrest, Steven Tyler, and Randy Jackson in American Idol (2002)

Barry Gibb, Robin Gibb, The Bee Gees, Aaron Kelly, and Siobhan Magnus in American Idol (2002)

Alanis Morissette and Crystal Bowersox in American Idol (2002)

Lee DeWyze and Crystal Bowersox in American Idol (2002)

Michael McDonald and Michael Lynche in American Idol (2002)

Christina Aguilera in American Idol (2002)

Bret Michaels and Casey James in American Idol (2002)

Paula Abdul and Simon Cowell in American Idol (2002)

Lionel Richie, Luke Bryan, and Katy Perry in American Idol (2002)

Harry Connick Jr. in American Idol (2002)

Jordin Sparks, Hollie Cavanagh, and Special Guest in American Idol (2002)

Lionel Richie, Ryan Seacrest, Luke Bryan, and Katy Perry in American Idol (2002)

Lionel Richie, Ryan Seacrest, Bobby Bones, Luke Bryan, and Katy Perry in American Idol (2002)