Carpool Karaoke Primetime Special: James Corden Dishes On Special Event With Hilarious VIDEO

James Corden is really, really excited about his primtime special for "Carpool Karaoke."

In fact, he's so excited about it, he recorded a hilarious prmo video for it--where he performs his own song--and even raps a bit--about the program.

Watch the hilarious one minute clip below