Pitbull is back! Well, actually he didn't go anywhere, but he's back with a big single called 'Back in Time.' The track is the theme song to the action-adventure comedy 'Men in Black 3,' which hits theaters in 3D on May 25.

Mr. Worldwide's 'Back in Time' will be serviced to radio and digital outlets on Monday (March 26). The song's title refers to the plot of 'MIB3,' in which Agent J (Will Smith) must travel back in time in order to save his sagely partner Agent K (Tommy Lee Jones) and the universe from destruction.

"It's an incredible honor to be a part of such an amazing franchise as 'Men in Black' and I have so much respect for Will Smith, especially with our similar musical backgrounds," says Pitbull in a press release. "Wanting to keep the music fun yet modern, we used the slogan of the movie and flipped it back into the song that 'in order to understand the future, you have to go back in time.'"

If everything goes well, Pitbull might have another hit on his hands. The Miami-based rapper garnered his first No. 1 hit single last year with the club anthem 'Give Me Everything' featuring Ne-Yo, Afrojack and Nayer.

Meanwhile, in an interview with GQ magazine, Pitbull talks about his work ethic and how he went from making crunk music to now rapping for worldwide recognition. He addresses the critics who think Pitbull is a sell-out for making danceable rap music. "People say I switched? Maybe I outgrew you," he says. "I look at it as an evolution, and setting the path. I’m showing you where to go."

Pitbull says he's comfortable with his pop star status and he will continue to make music that's sellable to a large audience. "Look, Pitbull is a product. Don't get it f---ed up, I'm a businessman," he explains. "This industry is 90 percent business, 10 percent talent. It’s the people who think they’re talented, that their s--- don't stink, who get left behind."

Pitbull's interview appears in the April 2012 issue of GQ magazine (featuring Drake on the cover), which is on newsstands now.