The 31-year-old beamed at the promotional function, clad in a black shoulder-less top with multicolored patterns and black short shorts. 

With her brown locks down, she rounded out her springtime get-up with white chunky heels with ankle straps.

The rules of Saturday's marathon - touted by organizers as 'a marathon, but a marathon like no other' - was that entrants had to run about 1,000 feet in slow motion, as popularized by the 90s waterfront series that starred Pamela Anderson. 

Entrants were set to be judged for their style, hairdo and outfit, with the victor getting a trip to the film's Miami premiere next month.

An ad on the film's Facebook page challenged fans to 'come down and put your body, heart and mind to the test.' 

The New York City native was joined at the event by her co-stars Zac Efron, Ilfenesh Hadera and Kelly Rohrbach.

The event also served as an unofficial reunion for original stars of the highly-rated 90s show, as Erika Eleniak, Nancy Valen, Donna D'Errico and Kelly Packard were seen on hand for the festivities.