Shawn Chrystopher hops on the remix of Mike Posner’s Who Knows?. The original being found on one of the dopest mixtapes of the year, A Matter of Time.

DOWNLOAD: Mike Posner – Who Knows (rmx) f. Big Sean & Shawn Chrystopher

DJ Benzi & Don Cannon present one of the best mixtapes of 2009 (so far, obviously). This shit definitely gets a Shake stamp of approval. Mike Posner and The Brain Trust do a great job on fusing pop/R&B/hip hop. Benzi on the mixing, Cannon on the hosting and guest spots from Big Sean, Donnis, Jackie Chain & Eric Holljes.

Tracklist + Download link after the jump…

And keep my glass full, to the tippy top
Till this girl right here, looks like Megan Fox

Mike Posner & The Brain Trust got great reviews when I posted their track with G.O.O.D. Music’s Big Sean a little while back. Now they return with a hilarious take on Kanye’s Love Lockdown. Shouts to elitaste, this shit is on point. Don’t worry, the Love Lockdown Remix post is coming this week. I’ve gotten your submissions people! I keep my autotune on, keep my autotune on. When I type like this. Don’t turn that shit off, cause I type like shit…

DOWNLOAD: Mike Posner & The Brain Trust – Fucked Up Now | MediaFire

I see that OKP threw a rough version of this joint up the other day, but I figured I’d come at ya’ll with a download of the CDQ (Great looks Matt!). If you checked Big Sean’s Finally Famous mixtape then you’ve definitely heard these guys collab before. All I can say about this record is that it’s really fucking dope. I understand some of ya’ll won’t mess with it but damn, Shake sure does! Also keep your ears to the internets as Mike Posner will be handling production on upcoming albums from Big Sean, Che Grand & Asher Roth.

DOWNLOAD: Mike Posner & The Brain Trust – Cooler Than Me f. Big Sean | MediaFire