Among highlights, Cordon confronts the actual actor playing the Phantom, Chris Mann, who asks what his name is. Cordon snarks, "James Corden is what it says on my Tony Award, what does it say on your Tony Award?"
Corden won the 2012 Tony Award as Best Actor in a Play for his performance in One Man, Two Guvnors.
Watch the clip from "The Late Late Show with James Corden" below: