Want all this in your inbox?
Get the Refinery29 Newsletter
You're in for a treat...
Thanks for signing up!
Please upgrade your browser for the best Refinery29 experience. Read more.
Mariah Carey, March 2015
Carey was the guinea pig of the new segment, and tried to deny that she would participate, but couldn't resist in the end.
Best Karaoke Song: "Thirsty"
Justin Bieber, May 2015
A lot of good stuff here: the dance moves, the Rubix cube, the clothing swap, and the eating of the fries.
Best Karaoke Song: "Baby" aka "The song with the most dislikes on the Internet." - Bieber.
Iggy Azalea, June 2015
The part about Corden's "physique" and skills in the bedroom was pretty awkward, but overall this might be the best Iggy interview ever.
Best Karaoke Song: "Black Widow"
Rod Stewart & A$AP Rocky, July 2015
One of the most under-rated Carpool performances. Stewart is a damn treat, and then cameo with A$AP Rocky was brilliantly random. Stewart has truly maintained his whole rock-n-roll ego.
Best Karaoke Song: "Everyday"