Keeping those perfect beach bods was all in a day's work for the stars of "Baywatch."

Erika Eleniak, David Chokachi, Gena Lee Nolin and even David "The Hoff" Hasselhoff reunited on Monday at The Hollywood Show in Los Angeles (below).

And it was there they revealed they were contractually obligated to maintain their flawless physiques!

"There was a five pound fluctuation [allowed], you couldn't go up or down," Nicole Eggert told Entertainment Tonight.

Fellow cast member Traci Bingham added, "If you did anything to gain or lose weight, etc., you were in trouble!"

"Baywatch" ran for 11 seasons and helped launch the careers of many of its stars, including sex symbols Pamela Anderson and Carmen Electrawho still look amazing today!

Find out how the rest of the cast has fared by clicking "Launch Gallery" to see the "Baywatch" gang then and now.


Top row: David Hasselhoff, Parker Stevenson, David Chokachi and Jaason Simmons.
Bottom row: Gena Lee Nolin, Nicole Eggert, Erika Eleniak, Brande Roderick, Traci Bingham.

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