‘American Idol’ Judges Through The Years

Randy Jackson, Paula Abdul, and Simon Cowell

Kara Dioguardi is a Grammy-nominated songwriter and former A&R executive

Kara Dioguardi joins ‘American Idol’

Ellen DeGeneres joins the judging table

Simon Cowell, Ellen Degeneres, Kara DioGuardi, and Randy Jackson judge a contestant on ‘Idol’

Steven Tyler and Jennifer Lopez become judges

Three newcomers join the cast of ‘American Idol’

Host Ryan Seacrest sits down with Mariah Carey, Randy Jackson, Nicki Minaj, and Keith Urban

Season 12 of ‘Idol’ had some tension on set

Some more changes come to ‘American Idol’

Lionel Richie, Katy Perry, and Luke Bryan. Instead of coming back to its original network, Fox, it found a home at ABC.