Donna D'Errico stood out at the splashy event Last Chance For Animals in Beverly Hills.

The 55-year-old Baywatch veteran who often poses in bikinis online wore a very sheer bright orange long dress with pirates sleeves.

The dress was so see-through that her bra and undies could be seen as she posed away on the red carpet.

The star, who is normally blonde, wore her hair a dark brown color as she added nude colored makeup.

Donna held onto a red clutch purse and had on an ornate gold necklace. She added shiny platform heels to boost her height.   

Donna played Donna Marco on Baywatch from 1996 until 1998; the show also featured a bevvy of beautiful people such as Pamela Anderson and Dave Charvet.

Hugh Hefner's widow Crystal Hefner was also at the LCA event. 

Rounding out the list was Esai Morales, who was just in the Tom Cruise led summer blockbuster Mission: Impossible - Dead Reckoning, Part One. 

Diane Warren received the Sam Simon Award.

E.G. Daily landed the Celebrity Activist Award. 

Bobi Leonard, a successful entrepreneur, businesswoman and TV personality, won  the Albert Schweitzer Award with notable celebrity award presenters and special guest supporters slated to attend.

Last Chance for Animals is an international non-profit organization that advocates for animal rights. It is known for its documentary, Dealing Dogs, and for its investigations against the use of animals for testing purposes. 

The founder is Chris DeRose. 

In late March Donna turned 55 and celebrated by sharing a photo where she was pulling off a red one piece swimsuit.

It looked similar to the suit she wore to star in the TV series Baywatch. She also had on a small white top which she pulled up to show off her underboob.

Fans made judgmental comments about how much she was showing.

Some said she should 'cover up' while others added that she was too old for the look. Most of her fans, however, complimented the bombshell on her look.

That same month the actress shared her frustration over haters who called her sexy posts 'raunchy.'

The nude model again expressed her fury over the trolls who depict her as trashy.

Donna took to Instagram to share a sexy photo of herself in a light pink lacy lingerie set while at her Los Angeles home. She was in profile as she flashed a coy look.

And in her caption she again lashed out at those who criticized her looks as she said if she is raunchy, so is Victoria's Secret.

Victoria's Secret is a lingerie company that is known for posing very sexy images of models like Bella Hadid and Hailey Bieber in skimpy lingerie.

The full caption read, 'If this is raunchy then so is @victoriassecret.'

She added, 'I think this is pretty. My very first post on tiktok and everyone goes nuts are you serious. With all the smut that’s out there? People kill me. I’m laughing.'

Soon after she posted another racy image. In this one, she had on a plunging one piece undergarment.

In her caption she said, 'Here’s me squatting again in a bathing suit. It’s so fun doing this thing called whatever I want.'

She then praised her fans: 'I love you guys so much. Thank you all for being so kind. Have a gorgeous day.'