Earlier this week, Kid CuDi announced that he is no longer signed to Kanye’s G.O.O.D Music label. But you know who is still signed to G.O.O.D Music? Big Sean. Before the weekend revelry, the Detroit native has unleashed his new single, Switch Up, his first release since last fall’s Guap. The song, which is co-produced by DJ Mano, No I.D. and Rob Kilenski, is a street meets club affair that finds Sean suggesting that it’s “time to kill it.” What, per say, is Sean suggesting is killed? Why the track, of course. Joining in on the swagged-out mic murdering is Sean’s labelmate and fellow Midwesterner, Common, who I can promise you’ve never heard rap quite like this before. Switch Up is the second single from Sean’s forthcoming sophomore album, Hall of Fame, scheduled for release this summer via Def Jam.