Pixelated Pop Stars: It’s Pitbull!
Answer: It's Pitbull from his 'Back in Time' video! The clip was filmed for the third installment of the 'Men in Black' series, and Mr. 305 teams up with Agents J and K to help kick some alien butt... but mostly he's the party boy of MIB.
Watch the Pitbull 'Back in Time' Video