She's a knock out! Pamela Anderson goes for the classy look at boxing match after soaking up the sun at Vegas pool party

She spent the day in a short sundress, showing off the beach-worthy legs that made her famous.

But on Saturday night, Pamela Anderson opted for a more classy look, covering up in a white maxi-dress as she stepped out for the Mayweather vs Guerrero boxing match in Las Vegas.

The 45-year-old former Baywatch star seemed to be somewhat more successful than a other recent attempts in showing her demure side.

Stepping up the class: Pamela Anderson donned a more demure number when she attended the Mayweather vs Guerrero fight in Las Vegas on Saturday night

A classy affair: The former Baywatch babe styled her tresses in glamorous spiral curls for the event

The long white dress covered the blonde star's chest entirely, although it did reveal her back.

The actresses toned legs could also be seen peeking through a slit in the more classy outfit.

White strappy platforms completed the outfit, and Pamela opted to style her tresses with neat spiral curls.

Of course, the classy look was somewhat distracted by Pamela's permament trademark - the barbed wire tattoo on her bicep.

Her trademark: Pamela's barbed wire tattoo will always offset any attempt to be demure, but then again it is a part of her legacy... as are those epic toned legs

Quite the change! Earlier in the day Pamela soaked up the sun in a short sundress at the opening of Sapphire Pool & Day Club in Las Vegas

Earlier in the day, Pamela kept it simple but short, in a gray off-the-shoulder mini sundress.

She is normally known for her forward presentation of her surgically enhanced chest, but on Saturday she was certainly upstaged in that department by Playboy model Nicole 'Coco' Austin.

Pamela has recently made it clear that she is actively attempting to tone down the sexy look that made her a household name.

She's going demure: Pamela's white maxi dress on Saturday night was a more successful attempt at pulling off the 'demure' look than her outfit at the Giorgio Armani event at Mr. Chow in Los Angeles in April

'I think it's time. You grow up and you change your look. I feel different from how I did in my Playboy days. Now, I think I'm in charge of toning down my look or not.'

The boxing match saw other celebrities such as P. Diddy and Boston Celtics basketball player Rajon Rondo in attendance.

Saturday night's highly anticipated fight between Robert Guerrero and Mayweather was comfortably won by Mayweather.

A star-studded fight: P. Diddy Combs also showed up on Saturday night to watch the epic boxing match and is pictured here at the after party