Asher Roth teams up with Justin Bieber, Chris Brown, and Rye Rye in "Actin Up."

It's been a second since we've heard from Asher Roth, but now the long-haired rapper (loving that, by the way) is back with "Actin Up," which features support from Justin Bieber, Rye Rye and Chris Brown, and appears on Asher's The Greenhouse Effect, Vol. 2. Oh, and just to make extra sure the whole world knows his iPhone contacts list is STACKED, Asher's Greenhouse also has collaborations with Lil Wayne. You know, just in case you weren't sufficiently impressed by that Bieber kid.

Listen to Asher Roth's "Actin Up" featuring Justin Bieber, Chris Brown, and Rye Rye after the jump.

Set to a grimy, bass-heavy beat, Asher spits his verse about giving precisely zero effs: "Ease off, back up, I'm about to act up/ Floating, sipping, having fun, cause I be young and acting up/ Acting, acting up." Rye Rye's up next, claiming: "Gotta have respect for my bad habits" (nail biting?). Then we have Breezy, who rhymes about a group sex orgy on a plane (true story, apparently).

And of course then there's The Biebs, who, channeling his rapping alter ego Shawty Mane, talks about being young and hot and liking women... a LOT: "So better watch out cause I'm so ahh/ I'm on some risky business/ I like women and French kisses/ Mama told do the dishes but I'm here catching fishes." It's basically the go-to anthem for anyone who legit doesn't care about what anyone thinks. But in the wise words of Miley Cyrus, "Only god can judge us." We'll just leave you with that.

+ Listen to Asher Roth's "Actin Up" featuring Justin Bieber, Chris Brown, and Rye Rye (NSFW), and cop a free download of The Greenhouse Effect, Vol. 2.

Photo credit: Island Def Jam