Pitbull celebrates his birthday at 1OAK Nightclub at The Mirage on January 6, 2012, in Las Vegas (Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net).

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.

Photo credit: Denise Truscello / WireImage.com DeniseTruscello.net.