You better Belieb it! Justin Bieber's carpool karaoke skit on Wednesday, May 20's Late Late show with James Corden was completely awesome, and the controversial pop star was back on top form as he answered hilarious questions about his love life, his underwear, and his song lyrics!

Bieber (like Mariah Carey and Jennifer Hudson before him) rides shotgun with the British comedian, joining him in his daily commute to the CBS studios.

And despite looking initially awkward, the moment his hit song "Baby" blares out from Corden's car stereo everything changes — and his evident glee becomes totally contagious.

Bieber and Corden proceed to dance (in perfect synchrony), sing, and rap their way through a string of Bieber classics, interspersed with some great carpool chat, and even a sub-two-minute Rubik's cube challenge!

"When I picked you up I didn't recognize you for a minute," Corden tells his guest in their first dialogue. "Because you had a top on."

Bieber laughs, and admits he did a lot of working out for his Calvin Klein ad. Corden asks if he has a lifetime supply of underwear now?

"I've got a lot," he replies, before admitting to wearing a pair once and them throwing them away. "I definitely don't wear them twice," he adds, smirking.

The singing and dancing continues, amidst some hilarious conversations about girls, sex, and sloppy song lyrics. But while the duo's karaoke efforts to Bieber's hits are enjoyable, it's nothing compared with the grand finale: a totally epic harmony version of Boyz II Men's "End of the Road."

Watch the whole video above, we promise you won't regret it!

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