Kacey Musgraves Pieces Together Her CMA After Party

James asks Kacey Musgraves about what caused the hangover she tweeted about the night after winning two CMA awards, and learns the night began on Willie Nelson's tour bus, and ended with a lot of tequila and very little recollection in between. And the two are stunned to find out Rebel Wilson has never had a hangover -- because she doesn't drink alcohol.

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Each week night, THE LATE LATE SHOW with JAMES CORDEN throws the ultimate late night after party with a mix of celebrity guests, edgy musical acts, games and sketches. Corden differentiates his show by offering viewers a peek behind-the-scenes into the green room, bringing all of his guests out at once and lending his musical and acting talents to various sketches. Additionally, bandleader Reggie Watts and the house band provide original, improvised music throughout the show. Since Corden took the reigns as host in March 2015, he has quickly become known for generating buzzworthy viral videos, such as Carpool Karaoke."