Big Sean on Friday revealed a new track, "Switch Up," featuring Common. The G.O.O.D. Music duo's collaboration is expected to appear on Sean's forthcoming sophomore album, which doesn't yet have a release date.

Upon unleashing the new cut, Sean tweeted: "This for everybody, who stayed real, stayed down reppin #FFOE #GOOD n everybody who stayed repping their own Team ... Through the good n bad times... Me n @common was on here just having fun staying real."

"Switch Up" goes to iTunes at midnight Saturday morning.

Guess G.O.O.D. Friday's back?