The Late Late Show is back on CBS tonight with guests Tom Hanks [1] and Mila Kunis [2] . . . and a brand-new host, James Corden. We stopped by the completely reimagined set just a few days ago, where Corden and his bandleader, Reggie Watts, gave us a preview of the celebrities and overall vibe we can expect from their big launch week. In the meantime, let a Brit fill you in on just who James Corden is [3] and why he's a name you need to know.