Kate Upton's enviable bikini body landed her on the coveted cover of Sports Illustrated's Swimsuit edition. Now Rob Fletcher, director of America's Next Great Trainer, tells Star how you can get in shape like Kate!

Tone Your Arms: "The key to Kate's arms is basic push-ups. If you're new to push-ups, start with three sets of 12 each day. Make sure it's a slow, controlled motion."

As if their hot bodies aren't enough to get them noticed, these smokin’ hot stars also rock the skimpiest and brightest bikinis on the beach! RadarOnline.com has photos of swimsuit sirens who aren't afraid of making a bold statement with colorful bikinis!

Paris Hilton, Britney Spears, Amber Rose and Bridget Marquardt all think hot pink when it comes to getting dressed for a day in the sun, while Denise Richards, Tara Reid and Kelly Rowland prefer to get gorgeous in day-glo green.

Courteney Cox and Josh Hopkins are doing little to dispel those dating rumors as the sizzling hot twosome were pictured for a second day in a row frolicking in the Caribbean surf - and RadarOnline.com has the photos.

PHOTOS: Courtney Cox And Josh Hopkins Sizzle In The Sun

Courteney was looking absolutely smoking hot in a teeny black bikini and her hunky 40-year-old Cougar Town co-star was looking none too shabby either!

Courteney and Josh are currently enjoying a vacation in beautiful St Barts along with the 46-year-old actress' six-year-old daughter Coco and some mutual friends - but, not surprisingly, all eyes are firmly on the hot couple, who insist that contrary to appearances, they are "just friends".

As RadarOnline.com previously reported Josh has been raving about Courteney to his family.

PHOTOS: Courteney Cox On Vacation With Cougar Town Costar Josh Hopkins

In an exclusive interview Josh's dad, Larry Hopkins told RadarOnline.com: "I know [Josh] likes her and is very fond of her. He's said she's a very nice person.

"If he approves of her, then I approve of her."

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And stating the obvious: "They are both very good looking people."

Cox separated from husband David Arquette last October after 11 years of marriage amidst rumors that she was dating another Cougar Town co-star, Brian Van Holt.

PHOTOS: Courteney Cox & David Arquette -- Back Together, On Screen

Meanwhile, Josh is no stranger to hanging with A-list actresses, he went on a number of dates with Courteney's BFF, Jennifer Anniston last year after meeting her on the Cougar Town set.

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Audrina Patridge's ex-boyfriend Corey Bohan is making no secret about how he feels about The Hills star since their recent break-up, RadarOnline.com has learned.

The Australian BMX racer went on an expletive-filled rant about his former love on Twitter, and while most of Bohan's angriest messages slamming the reality star were deleted, his final tweet made his feelings loud and clear:

PHOTOS: Bikini Babes In On-Again-Off-Again Relationships

"A girl that's told yes by everyone surrounding them grows up to be a heartless closed off insecure individual," Corey wrote.

In an earlier message, the tattooed tough guy lamented: "Time 2 pick up the pieces & stop being so sad! Some woman will always be empty & rotten from the inside out. U cant love a heartless woman."

After you’ve drank your fill of egg nog and wrapped your last present, why not head to the cineplexes! Starting Thanksgiving weekend, there has been a steady stream of hot new movies being released. To give you a taste of what is out there, RadarOnline.com brings you a gallery of the sexiest women gracing the big screen this holiday season!

PHOTOS: Holiday Movie Hotties

Which blondes are co-starring with Ryan Gosling? (But in two separate movies!)

Which Oscar-winning actress debuts as a country singer?

Check out the gallery to find out!

George Clooney's lady love Elisabetta Canalis showed off her flawless figure as the couple vacationed in Mexico this weekend, and RadarOnline.com has the sexy shots.

PHOTOS: George Clooney's Gal Pal - Beach Babe

While the Italian beauty pranced on the beach, her Oscar winning beau somehow managed to dodge the cameras.