CELEBRITY
09/26/2011 11:33 am ET Updated Nov 26, 2011

Ashlee Simpson Parties In A Bikini In Cabo (PHOTO)

Ashlee Simpson partied poolside in a teeny polka dot bikini in Cabo San Lucas this weekend.

On Friday, the singer and actress hit the pool with some girlfriends, and was later joined by sister Jessica Simpson and new boyfriend, "Boardwalk Empire" star Vincent Piazza.

According to PopSugar, Cabo was more star-studded than usual. The Simpson sisters were spotted grabbing lunch with Nicole Richie and Samantha Ronson, who were celebrating Nicole's 30th birthday with some fun in the sun.

PHOTO:

Check out some other celebs soaking up the sun:

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BEFORE YOU GO
Stars On The Beach: Celebrities Hit Bikini Beach
PHOTO GALLERY
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