Heidi Klum reveals more than she bargained for as she suffers wardrobe mishap

HEIDI Klum accidentally revealed her pants as she posed in a very extravagant frock.

The supermodel, 49, once again pulled out all the stops at Cannes Film Festival in the plunging dress with thigh high split.

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The stunning gown also features metres of pastel green tulle, creating a train and very dramatic look as she walked.

Aside from a brief flash of her nude underwear, Heidi managed to keep her modesty intact as…