After shows on Thursday and Friday, Drake had yesterday and today (Aug. 7) off in NYC before he's set to close his three-night "Summer Sixteen" run at Madison Square Garden tomorrow night. He managed to sneak in a performance earlier this evening, though, as he went over to Brooklyn to show up as a surprise guest during Boi-1da's set at the Mad Decent Block Party. 

Drizzy ended up dropping a medley of hits, while his labelmate spun the beats. There wasn't much of a crowd when he first took the stage, but the grounds were packed and shaking by the time he got to "Back to Back." Watch footage of that as well as "Energy," "For Free," and "Jumpman" below.