As he begins to belt the lyrics and head bang along to the beat, Underwood is seen grooving and singing with Insit

Carrie Underwood may have won American Idol years ago, but stepping into the judge's seat has come with a learning curve. Luckily for the new judge, her fellow co-stars, Luke Bryan and Lionel Richie,

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