Heidi Klum radiated beauty and joy while sunbathing in a stunning video shared on social media.

On Monday, Dec. 8, the Project Runway star, 52, posted a clip of herself on Facebook and Instagram that dropped jaws.

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“☀️👙😊,” the supermodel captioned her update, which fittingly featured the song “Monday, Monday” by The Mamas & The Papas.

In the video, Klum lay on her stomach while outside on a lounge chair and soaking up the sun. She seemingly wore only bikini bottoms to avoid tan lines from the top. The former America’s Got Talent judge closed her eyes while resting her head in one hand, her long blond hair down and flowing over her shoulders.

On Facebook, fans flooded Klum’s comments with praise. One follower wrote, “Still a Goddess 😍.”

Another declared, “Aging like fine wine.”

Someone else joked, “There’s a bug on the blanket! Get up quick!”

A different Facebook user echoed, “You’re such a beauty 😍.”

Meanwhile, yet another fan marveled, “How is she still that stunning?”

Klum is no stranger to turning heads with stunning bikini and lingerie photos. In August, she posted a steamy photo of herself in a two-piece swimsuit while kissing her husband, Tom Kaultiz, 36, in celebration of their anniversary.

More recently, Klum turned heads in a new photo while rocking red lingerie for Intimissimi. She also rocked a tiny string bikini in July, flaunting her ultra-toned body in the process.

In November 2024, Klum dished on the fitness routine that helps her stay in shape in her 50s.

“Sport en chambre is my favorite exercise—it sounds better in French,” she told The Times . “I have a younger husband. I also run around a lot, having four kids. I don’t have an assistant, so I don’t have people pack for me or carry my things, I do everything myself.”

She continued, “I eat right, I never exercise too much or do heavy weights. People can push themselves too hard. I listen to my body. I have no back or knee pain and I have my husband … My husband is my match.”