James Corden: actor, late-night host, diva.The Late Late Show host was thrilled to be asked to choreograph Dancing with the Stars. But even when he learned he'd only be choreographing a 20-second bumper, Corden refused to let pride get in the way of his big moment.Decked out in a sequin, feathered kimono and a bevy of sweatbands, Corden set to work creating one of the most unique routines Dancing fans have ever seen. Watch the fierce dance number above.