That's because 50's new collaboration isn't with Timbaland, the Game, or Lil' Wayne, but Puerto Rican duo Wisin y Yandel. And it's in Spanish.
50-Cent is one of a growing cohort of American rappers flocking to the Carribean (and New York) to record with established artists like Daddy Yankee (whose English remixes sometimes land him on MTV), Wisin y Yandel, Zion y Lennox, Aventura, and Luny Tunes, purveyors of the Carribbean's infectious blend of rap, dancehall, and bachata, called Reggaeton. Never heard of 'em? Well, get yourself an education, courtesy of some of America's most popular rappers: