By Leah Ornstein - Breaking Celebrity News Style & Beauty Editor

It was a sexy day on the Redondo Beach set of 90210, as AnnaLynne McCord, Jessica Stroup, Gillian Zinser and Trevor Donovan stripped down and showed off their hot bodies in sexy swimwear – and Breaking Celebrity News has all the photos.

AnnaLynne, who plays queen bee of West Beverly High School on the hit television show, flaunted her fabulous figure in a style-savvy, embellished halter bikini.  The 23-year-old stunner, who has been under blast in the past for having a super-skinny bod, looked noticeably healthier in her incredibly sexy swimsuit.