'Project Runway' star Heidi Klum may sing TV duet with husband Seal

German supermodel Heidi Klum and her British husband Seal are reportedly planning to sing together at this year's Victoria's Secret Fashion Show.

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Usmagazine.com quoted a source who said the couple planned to perform "Wedding Day," their duet from from Seal's upcoming album, on the CBS Victoria's Secret telecast.

"Heidi may do a duet with Seal. She has a great voice and they sing at home all the time. It's looking like it's going to happen," the source said.

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Seal's representative, Liz Rosenberg, told Usmagazine.com, "I am unable to confirm that they will be performing together."

The couple married in 2005 and have two children together.

Kanye West and the reunited Spice Girls are also to appear at the annual Victoria's Secret event, which is to be broadcast Dec. 4 on CBS.