Heidi Klum & Seal's Sexy Sing-along

While the marquee performers at last night's Victoria's Secret Fashion Show were the reunited Spice Girls, perhaps the biggest surprise of the evening came from the lingerie company's signature model, Heidi Klum, who took to the stage not only to pose in some revealing skivvies, but to sing!

The breathtaking mother of three joined her hubby, Seal, himself decked out in a sequined suit, to perform their duet "Wedding Day." And though a number of audience members were surprised at just how well Heidi could carry a tune, perhaps the most impressed person at the show was the supermodel herself, who had revealed to OK! only hours earlier that she was suffering from a terrible sore throat. “I’ve had it all week,” she told OK! during her hair and makeup session.