There are a ton of perks that come with having rap friends. For starters, you could wind up with a cool nickname. After Justin Bieber partnered with 2 Chainz, Mac Miller and Asher Roth for his "Boyfriend" remix, the Biebs earned himself a new moniker.

"I call him Lil Swaggy," 2 Chainz told MTV News while backstage at Hot 97's annual Summer Jam concert on Sunday.

In fact, JB was so swagged out that the "Spend It" MC almost missed him when they met. "I saw him and when I saw him, I didn't even know it was him, I didn't even recognize him. He had grown up a lot from me seeing him on TV," Chainz said.

Right now, 2 Chainz is arguably the hottest rapper out, guesting on an army of rap and R&B tracks: He currently has singles with Kanye West, Young Jeezy and Nicki Minaj in rotation at radio. So when Bieber's team came calling, the Atlanta trap rapper figured it would be a great opportunity to showcase his versatility. "I did it, I was just tryna show people that I don't have to cuss and do things like that, so it was cool," Dos said.

2 Chainz teased the "Boyfriend" remix with MTV News during his Atlanta tour stop with Drake a few weeks back.

"I'm able to express myself in different ways, so I enjoy doin' different records like that and not just hip-hop records, so it's cool," he said at the time.

On the remix, Dos drops some flirty bars for the ladies, maintaining his usual wit and Southern charm. "Let's figure it out, I figured it out/ Shawty so thick she put a dent in my couch," he spits. Flexing his creative muscle wasn't the only perk that 2 Chainz enjoyed while working with Bieber, though. There is a certain recognition that comes with collaborations of this magnitude as well. "It was creative and I got like 40,000 new followers on Twitter messin' with that boy, a lot of Beliebers," he bragged.

Should 2 Chainz and Justin Bieber collaborate more often? Tell us in the comments!