Shania Twain's got the personality, Jack Antonoff's worked with every big name and why shouldn't original winner Kelly Clarkson consider another shot with the show?
James Corden picked up Chris Martin on his way to the Super Bowl for another round of Carpool Karaoke, Jimmy Kimmel brought together the cast of "E.R." including George Clooney, and Stephen Colbert gives his best recap of the Iowa Caucuses winners.