When he's not busy getting into trouble with the cops, whether that be in the U.S. or in Canada, or sucking on stripper nipplesJustin Bieber is in the studio with rappers. Obviously. In recent months we've seen the Biebz pop up in the studio with Kid Cudi, and we've seen the young pop star collaborate with Chance The Rapper, Lil Wayne and Big Sean, to name a few.

Well, last night, it appears Justin Bieber was back in the studio with multiple rappers by his side. Rick Ross was there with some of his MMG members, Wale and Stalley, as was the Mastermind executive producer, Diddy and Jermaine Dupri. Diddy later re-posted the photo on his Instagram with the caption "#RP @justinbieber 4:00am in Atlanta workin on that#MMM," clarifying that they were all together working on Mastermind. Diddy documented more of the night, first posting photos of him and Rozay hopping a private jet presumably to go to the ATL, and then photos of the two in the studio putting the finishing touches on Mastermind. 

Peep the flick from Justin Bieber and Diddy's Instagram in the gallery above.