When you write a song with the line, “Your body is timeless†(and you also happen to be from the Bronx), then you’ve basically written a song about Jennifer Lopez. Prince Royce knows this, so he recruited J.Lo for the Spanish version of his new, non-bachata single, “Back It Up.â€Â Pitbull’s kind of a non-factor in both versions of the song, leaving Mr. Worldwide to mostly play hype-man in the background of the video. The only star here is J.Lo, in all her white-hot fierceness, which she immediately uses to seduce Prince and steal the show on his own song. Jason Derulo, take note.