The four-time Grammy nominee, who previously appeared as a guest mentor in Season 22, will provide contestants with first-hand advice during their journey on the “American Idol” stage.

Abi Carter beat out Jack Blocker and Will Moseley to win "American Idol" Season 22, which marks Katy Perry's last. Here's ...

Carrie Underwood is returning to the American Idol stage 20 years after she was crowned the winner of Season 4. The show undoubtedly launched her career, and she hasn't forgotten her roots.

Season 23 of 'American Idol' airs Sunday, March 9 at 8 p.m. ET on ABC Get excited, Idol fans! Season 23 is upon us. In a new promo premiering exclusively with PEOPLE on Monday, Jan. 27 ...