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Diddy was the surprise guest at last night's HOT 97 Summer Jam in New York City.

In addition to the "O Let's Do It (Remix)," contactmusic.com reports that Diddy also performed the Bugatti Boyz's "Another One" and DJ Khaled's "All I Do is Win (Remix)." He also participated in the tribute to The Notorious B.I.G. and 2Pac.