Heidi Klum flaunts physique in bikini top during billboard unveiling

Heidi Klum is embracing her right to bare all.

The 52-year-old supermodel attended the unveiling of her new billboard in partnership with Italian beachwear company Calzedonia in Cologne, Germany.

At the unveiling ceremony, the model turned heads as she posed for photos in a blue Calzedonia bikini top, which showed off her toned abs. She paired the look with a pair of jeans, a jean jacket she wore off the shoulders and a pair of sunglasses.

Klum shared a video on her Instagram...