In short, girlfriend can still sing - despite all the dodgy videos doing the rounds. Corden's pipes aren't too shoddy either. His accents, on the other hands, are just a bit PANTS. But, on the upside, he manages not to crash the car while busting out some proper air-punching arm moves.
We're still trying to figure out if it's inspired or just a bit buttock-clenching too...
Reviews are in for James Corden's US talk show debut