American Idol judge Carrie Underwood briefly broke from her country music roots so she could rock out with a heavy metal performance—and fans loved the completely different side of her. On March 9, Season 23 of American Idol premiered on ABC.

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.

Carrie Underwood has shown off her American Idol premiere outfit leaving fans in awe as she debuts as the show's newest judge.

Former American Idol winner Carrie Underwood isn’t new to the show, but she is new to judging the show’s talent. Her return for Season 23 marks a new chapter for the singer, who achieved massive success after winning Season 4.