WATCH: Catherine Zeta-Jones, 51, dons backless swimsuit during yoga session on yacht

Catherine Zeta-Jones
Photo credit (Getty Images)

Catherine Zeta-Jones is defying the laws of aging once again.

The 51-year-old actress took to social media to share a video of her working out on a yacht. Zeta-Jones wore a backless black swimsuit showing off her svelte figure while working out.

In the video, the actress embarks on a yoga flow that includes several stretches and planks.

“Easy like Sunday morning,” Zeta-Jones captioned the post.

Fans were wowed by the "Zorro" actress's routine.

"Goals," one person commented on the post, while another said the star and wife of Michael Douglas was an “inspiration.”

“Excuse me you have no business being this hot,” read one comment.

The Oscar winner is known for posting pictures of herself and showcasing her confidence.

Last week, she surprised her fans with a makeup-free selfie, flashing the camera a big smile while showing off plenty of legs. She also wore a pink patterned robe. It’s one of the few times the Zeta-Jones has been seen without her usual full-glam makeup look.

“Hello…….” she captioned the post.

Soon after the post, Zeta-Jones raved over her husband, Michael Douglas, 76, in a series of Instagram snaps. The couple is seen kissing before bursting into laughter.

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Featured Image Photo Credit: (Getty Images)