Underwood's performance experienced technical difficulties, leading her to sing a cappella. She asked the attendees to join in. "You know the words," she said. Michaels Wolflick p

Carrie Underwood has “American Idol” on her side. After collecting backlash for performing at Donald Trump’s second inauguration, which resulted in the star belting out “America the Beautiful” a cappella due to a technical difficulty,

Carrie Underwood’s performance at Donald Trump’s inauguration reportedly impacted her work on the set of American Idol. Twenty years after her American Idol win, Carrie Underwood has joined the show as a judge.