During a recent American Idol episode, Carrie Underwood didn’t hesitate to roast her co-star. She joined Season 23 as a judge to replace fellow singer Katy Perry, who left for her world tour and travel to space in a historic Blue Origin flight.

Carrie Underwood is a Hollywood star — as in, a celebrity — who still cringes when she thinks of a gaffe she made on American Idol two decades ago. In a recent Instagram vide o in the reality show’s #IdolToIcon series, Underwood rewatched a clip from her Idol debut in 2005, when she won the competition’s fourth season.

American Idol's new judge Carrie Underwood admits to the thing that will make her a better judge as the competition moves ahead amid signs of change.