James Corden's debut as host of the The Late, Late Show has been met with an enthusiastic response by US viewers and he had made some very A-list friends in the process.
In a new skit called Carpool Karaoke, the former Gavin & Stacey star goes for a drive with Mariah Carey and surprises the singer by turning on some of her hits on the radio.
While she's initially reluctant to indulge in a bit of a sing-song, she eventually joins in and the results are pretty brilliant.
We really want to do car karaoke with these two now!
