It may be the most unusual celebrity mash-up the world of boxing has seen in years: next Thursday, Dustin Hoffman, Adriana Lima, Hugh Jackman, Narciso Rodriguez and Harvey Keitel will serve as judges at a punching and jump-rope competition at Aerospace, the fitness studio in New York's Meatpacking District that's become a magnet for the fashion and film world. The stars — all clients or friends of the club — will judge competitors on their moves, wardrobe and "swagga," or how they carry themselves in the contest.

The jabs and jumps will raise money for a fitness program at the East Harlem School at Exodus House. And while we can't comment on the boxing chops of Harvey or Dustin, Aerospace co-owner Michael Olajide, Jr., says Lima is one to watch in the ring. "She may be a model, but she hits hard," he says. Olajide, a former boxer, should know: he teamed up with Lima for a video (click HERE to view) on the supermodel's Web site showing off her post-pregnancy body, which Olajide helped tone over two months of intensive training after she gave birth last November.

The competition is May 6 at Aerospace. Tickets cost $20 for members and $30 for non-members. Call at 212-929-1640 for tickets.