Elizabeth Hurley, 50, Shows Off Insane Bikini Body

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Age ain't nothing but a number!

Elizabeth Hurley showed off her jaw-dropping bikini bod on Instagram on Sunday, rocking a bright yellow two-piece from her own collection.

....Can you believe the British actress turned 50 in June?!

PHOTOS: Hollywood's Best Bikini Bods Over 40

"Mellow in yellow #elizabethhurleybeach," Hurley captioned the stunning pic.

She also reminded us she has a 13-year-old son, snapping a bikini selfie with her only child, Damien Charles.

"With my baby ?#elizabethhurleybeach," she wrote.

The Royals star has talked about her diet and exercise routine before, telling Healthy Living recently that one of the secrets to her enviable figure is cutting back on eating later in the day.

"If my jeans feel tight I try to cut back a bit, and if I stay home in the evening, I’ll eat a very light dinner," she told the magazine. "I really try to go out of my way to eat an apple for a snack instead of a cookie and I always start the day with a couple of mugs of hot water. Otherwise I eat pretty normally but avoid processed and junk foods."

"I don’t do a lot of set exercise but I’m very active and run around all day," she added.

WATCH: Elizabeth Hurley Shares Amazing Flashback Photo of Her on a Stripper Pole in Vegas

In March, Hurley surprisingly opened up about her famous ex, 55-year-old Hugh Grant, during her appearance on Bravo's Watch What Happens Live. According to the model Hugh is "annoying" and "grumpy" but a "10" in bed. Watch below!