Sex Change Bombshell: Richard Simmons Is Secretly Living As A Woman! Find out why he's been hiding from his fans.

Move over, Caitlyn Jenner. RadarOnline.com has learned that Richard Simmons is the latest Hollywood star to secretly undergo a sex change!

The National ENQUIRER broke the explosive news today with a jaw-dropping cover story that features never-before-seen photos of Simmons living as his female identity, Fiona.

The incredible pictures of Simmons, 67, with flowing brunette locks and womanly curves are photoshop-free. And a friend of the exercise guru insisted, “[This is] not just Richard Simmons in drag. This is Richard dressed as a softly spoken woman named Fiona!”

Like Jenner, Simmons has opted for breast implant surgery, hormone therapy, and a host of other invasive changes to create the transformation, The ENQUIRER reported. And while he’s yet to make a public announcement, the magazine said he’s secretly been venturing out of his Hollywood Hills home dressed as a woman for months.

Radar exclusively reported in March that Simmons had begun dressing as a female on occasion.

“Richard would go into great detail about the outfits he would wear,” an insider said at the time. “It’s a fun thing for him to do.”

The news comes amid mounting concern for the former fitness guru. Simmons has not been seen in public for nearly 1,000 days. As Radar reported, he broke down in tears during an LAPD welfare check at his home in January 2015. And this past weekend, he was hospitalized in Los Angeles for dehydration.

Story developing.