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 account of a German news station covering the event, jokingly writing in the caption, "Have you seen me yet? I'd like to have a bigger picture."HEIDI KLUM'S DAUGHTER FIRES BACK AT CRITICS OF RACY LINGERIE ADS WITH HER MOMIn one of the photos, Klum is spray-painting part of the billboard while up on a crane. In others, she's standing in front of the billboard and happily pointing up to it.Her partnership with the Italian company was announced in early June, the day after her 52nd birthday. The "America's Got Talent" judge made the announcement on Instagram, posting a video featuring her in various Calzedonia swimsuits."For your perfect summer with @Calzedonia ," she captioned the post.She is not one to shy away from posing in barely-there clothing. She shared a video of herself lying topless on the beach while on vacation with her husband, Tom Kaulitz. The two were celebrating their fifth wedding anniversary.LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWSWhen speaking with Fox News Digital in August 2024 about her decision to go topless during her vacation, Klum said, "Fo me, this is no big deal.""Even though I am American, I'm also very much European," Klum explained. "I grew up with a lot of nudity on the beach. For me, this is no big deal."It's not like I'm doing something that's like, Oh this is so out of line,'" she added. "And I always go to a beach when there's not a lot of people there, so I feel like I'm not hurting anyone's feelings when they're watching me. Usually there's no one in sight."CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTERWhile promoting her partnership with the clothing brand in Germany, Klum will also be filming the finale of "Germany's Next Top Model," which she has been hosting since the show's debut in 2006.