Justin Bieber and James Corden Perform Bruno Mars Cover in Their Third 'Carpool Karaoke'

Justin Bieber was back in the passenger seat of James Corden's car for a special post-GRAMMYs edition of "Carpool Karaoke" on The Late Late Show.
Seeing as this is the 21-year-old heatthrob's third time participating in the segment, the two decided to sing Bruno Mars' "Uptown Funk" rather than one of Bieber's hits.
The late-night host and "Sorry" singer are quite the comedic duo. When Bieber shows up wearing a tuxedo that's almost identical to Corden's, the TV personality quips, "We already looked stupid. ...We look like a pair of waiters on a cruise ship!"
Showing just how deep their friendship goes, Bieber even helps Corden moisturize his T-zones.
In addition to "Uptown Funk," the two also open The Late Late Show by singing the CBS program's theme song.
It was a big night for Bieber as he took home his first GRAMMY ever for the dance track, "Where Are U Now," featuring Skrillex and Diplo. ET got Selena Gomez's reaction to her ex-boyfriend's good news.
"I'm very happy for him. Honestly, so cool," Gomez said, going on to praise Bieber's collaborators, "They have such a cool energy amongst all of them to be able to create something like that. It's really great."