The performer joined James Corden for a ride on Tuesday's episode of The Late Late Show, singing tunes from his latest album, 24K Magic, as they discussed fashion, Elvis Presley and poker.
Corden told him that every time they've met, Mars "seems like he's in a great mood," which he attributes to the performer's soft silk shirts and impressive hat collection. They tried out a few new looks, with the late-night host finally settling on a gold glittery cap that made him feel like "I'm just a guy who's constantly waiting for his Tinder date to turn up."
Mars told Corden he knew he wanted to be a performer at the age of 4, when he impersonated Elvis onstage, which led to a duet of the legend's "Jailhouse Rock." "In this car right now, you're young Elvis, and I'm fat Elvis when he's in Vegas," joked Corden.
See photos of James Corden:
LONDON, ENGLAND - JULY 20: (EXCLUSIVE COVERAGE) (L-R) James Corden, David Walliams and Rob Brydon attend the closing night of 'Monty Python Live (Mostly)' at The O2 Arena on July 20, 2014 in London, England. (Photo by Dave J Hogan/Getty Images)
LONDON, ENGLAND - JULY 02: James Corden and Mark Ruffalo attends a Meet The Cast event for 'Begin Again' at Apple Store, Regent Street on July 2, 2014 in London, England. (Photo by Danny Martindale/WireImage)
NEW YORK, NY - JUNE 25: Actors James Corden, Keira Knightley, Mark Ruffalo and Adam Levine attend the 'Begin Again' premiere at SVA Theater on June 25, 2014 in New York City. (Photo by Andrew H. Walker/Getty Images)
LONDON, UNITED KINGDOM - MAY 18: James Corden arrives at the Arqiva British Academy Television Awards after party held at the Grosvenor house, Park Lane on May 18, 2014 in London, England. (Photo by Niki Nikolova/FilmMagic)
LONDON, ENGLAND - FEBRUARY 19: Host James Corden presents The BRIT Awards 2014 at 02 Arena on February 19, 2014 in London, England. (Photo by Matt Kent/WireImage)
LONDON, ENGLAND - FEBRUARY 17: Suki Waterhouse, Bradley Cooper, Julia Carey, James Corden and Anna Wintour attend the TOM FORD show at London Fashion Week AW14 at The Lindley Hall on February 17, 2014 in London, England. (Photo by Nick Harvey/WireImage)
LONDON, ENGLAND - FEBRUARY 17: (L to R) James Corden, Anna Wintour and Bradley Cooper attend the TOM FORD show at London Fashion Week AW14 at The Lindley Hall on February 17, 2014 in London, England. (Photo by David M. Benett/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 22: Chris Pine and James Corden at the Groucho club on October 22, 2013 in London, England. (Photo by Mark Robert Milan/FilmMagic)
Discover More Like This
BACK TO SLIDE
The singer gave Corden some dance tips as well, including "shoulder moves" that took a while to master, before teaching the host his best poker face from his card-shark days.
The duo sang their own versions of "Locked Out of Heaven," "24K Magic," "If I Knew," "Uptown Funk," "Perm" and "Grenade."
"I'd catch a grenade for you," Corden told Mars, but "only if the pin was in," he clarified.