Carrie Underwood was given an iconic new nickname by fans as she made her judging debut on American Idol. American Idol kicked off its 23rd season Sunday night, bringing a fresh wave of talent and a major shake-up at the judges' table.

American Idol is back once more to showcase new competition and talent. But this year will feel a little different with Katy Perry stepping down. Perry has served as a judge since the series was rebooted in Season 16.

Carrie Underwood is a judge on American Idolnow, and she recently joined a contestant singing Korn and Drowning Pool classics during his audition. The country vocalist became a superstar after winning the fourth season of American Idol back in 2005.