In an Unexpected Move, Lady Gaga Celebrates Her Birthday by Sweatin' to the Oldies

Yesterday was Lady Gaga's 26th birthday. She celebrated by perspiring a lot with her closest friends. No, she didn't host a marathon dance party inside a space ship rocketing to Mars, filled with aliens, exotic animals, and men with extremely sculpted torsos. Instead she and her friends got wild and crazy by riding on… »3/29/12 8:00pm3/29/12 8:00pm