Passing Judgment: Tilda Swinton & Justin Bond

Out covergirl Tilda Swinton and Justin Bond of Kiki & Herb and Shortbus fame, hit the red carpet together at the Costume Institute's Gala on Monday night. And, they look eerily similar--each one channeling a different era of David Bowie's career (who was also in attendance that evening). Could these busom buddies have been separated at birth?

Tranny? or Hot tranny mess?