He's already worked with Timbaland, Drake, Pharrell, Danja, Hit-Boy, will.i.am and Diplo on his June 19 release Believe, but now there's photographic evidence that teen pop sensation Justin Bieber has teamed up with hip hop Mozart Kanye West, too.

The unlikely duo hit a New York City studio Friday for a late-night recording session. Biebs' bodygaurd and right-hand man, Kenny Hamilton, took to Twitter to post a photo of the two at work. Check it out right here [via Rap-Up]

“Putting the finishing touches on the album and it’s gonna be special! @justinbieber and @kanyewest#Believe,” tweeted Hamilton.

It's not the duo's first time working together, either; they previously teamed up on the remix to “Runaway Love,” featuring Raekwon.

So, there you have it: Justin Bieber and Kanye West in the studio. I wonder if 'Ye's new crush Kim Kardashian was around...? I mean, she's pals with Biebs, too--perhaps once even more than friends (remember their romantic Caribbean getaway? I do). So please, please, please let her rap on a track! The world is clearly dying to hear that. And if the trio need a new stage name, well, it's simple: Kimyiebs. 

Thoughts? Leave 'em in the comments section below.