Lisa Rinna isn't interested in her online critics.

The reality star celebrated her 57th birthday on Saturday and shared a special snap online to mark the occasion.

On Instagram, Rinna shared a NSFW nude throwback photo -- which exposed her breasts and backside, donning only thigh-high stockings and black stilettos -- from a photoshoot she had previously done for "Playboy," according to Us Weekly.

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Rinna has posed for Playboy twice in her lifetime: once in September 1998 while six months pregnant with daughter Delilah and again in May 2009.

"Birthday Suit," the actress captioned the photo, adding a birthday cake emoji.

Lisa Rinna celebrated her 57th birthday on Saturday. 

Lisa Rinna celebrated her 57th birthday on Saturday.  (John Tsiavis/Bravo)

While the comment section was mostly filled with praise, there were a few critics as well.

One follower called the photo "a bit much" while another claimed Rinna is “supposed to be a role model."

LISA RINNA CELEBRATES 57TH BIRTHDAY WITH THROWBACK NUDE PLAYBOY PHOTO

A third added: "Somethings [sic.] wrong with you."

"Yes, and..." the former "Days of Our Lives" actress wrote in response.

Lisa Rinna

Lisa Rinna (Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)

Several of Rinna's famous friends had her back, however, and offered her compliments in the comments.

"Dammmnn," wrote Katharine McPhee.

"[Mark Consuelos] and i are glad you were born," said Kelly Ripa with a string of emojis. "Especially [Consuelos]."

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Melanie Griffith wrote, "H.O.T."

Rinna's husband Harry Hamlin even joined in on the fun, commenting with three flame emojis.