Stars In Heat

Wearing a cowboy hat and an itsy bitsy, teenie weenie red and black bikini, fomer "O.C." star Rachel Bilson heated up the beach in Hawaii this weekend.

Once again Kiefer Sutherland poured himself into a spandex banana hammock while vacationing in Italy this weekend.

Matt Lanter -- who apparently stars on "90210" -- proved how smokin' his bod is by going shirtless underneath a fireman uniform in L.A. on Wednesday.

Pussycat Doll Nicole Scherzinger did everyone a favor this weekend during a trip to Hawaii ... by squeezing into a tiny pink bikini and doing a little paddle surfing.

Hilary Swank strapped a pink bikini to her muscles and rolled around Hawaii yesterday with her boyfriend.

Greasy and hairless second tier "Jersey Shore" cast members Ronnie and Sammi took time out from unnaturally tanning to do it the old-fashioned way yesterday on the beach in Seaside Heights, NJ.

Bar Refaeli stripped down to her ridiculous pink bikini this weekend -- to romp around the deck of a super-expensive yacht off the coast of Costa Smeralda ... but she wasn't the only supermodel on board.

Sporting matching hairless chests, former "Hills" star Audrina Patridge and her sometimes boyfriend Justin Bobby Corey Bohan turned up the heat while on vacation in Bora Bora this weekend.

"Project Runway" host and mother of four Heidi Klum turned a yacht into a catwalk by rockin' a bikini in Italy yesterday.

Kiefer Sutherland got into the swing of things by showing off his man-panties on a beach in Copenhagen on Tuesday.

Rockin' a samurai 'do and no shirt, Johnny Depp enjoyed his day in the sun while on a break from shooting the latest "Pirates of the Caribbean" sequel in Maui this weekend.

Dr. Conrad Murray continued his vacation yesterday -- lounging with a drink in the pool in Miami with baby mama Nicole Alvarez and their young son.

The producers of "Dark Tide" need only show this photo of Halle Berry -- shooting scenes off Seal Island in South Africa today -- to promote the upcoming movie.

Tracy Ryerson stars on Showtime's lesbian reality series "The Real L Word," but it was her rockin' bikini bod that put on a show in Santa Monica on Thursday.

"Do not worry" ... Dr. Conrad Murray was merely rocking his infant son to sleep while taking a dip in Miami today where he and baby mama Nicole Alvarez are on vacation.

Lady Gaga took time out from touring to suck face with her boyfriend Luc Carl, tan her porcelain skin and even indulge in a game of chicken fights while at a hotel pool in Texas on Monday.