James Corden Hilariously Shakes It Off as Taylor Swift's Backup Dancer

The old James Corden can't come to the phone right now. Why? Oh, because he's too busy being Taylor Swift's backup dancer. During a hilarious skit on The Late Late Show on Thursday, the host decided to fill in as the Forum general manager during the iHeart Radio Jingle Ball in LA. Aside from playing security guard for Ed Sheeran and giving Demi Lovato a pep talk, he also filled in as one of the backup dancers for the "Look What You Made Me Do" singer. Let's just say, Taylor instantly regrets it. See how it all goes down above.