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Lady Gaga's new boy toy -- "Vampire Diaries" star Taylor Kinney -- has already established the pec'ing order in his blossoming relationship ... shredding out hardcore in Southern California recently to soak up some rays.

More attractive people in paradise ... this time it's 19-year-old Miley Cyrus kickin' it in Hawaii ... in a teeny, tiny red bikini.

Being cold in December is not for the rich and famous.

Everything was bikini as usual when Rihanna hit the beach in her native Barbados yesterday ... until she took a dip in the ocean.

Rihanna's orange bikini top turned transparent in water ... but the singer didn't seem to mind, splashing around without a care in the world.

Former *NSYNC boy bander Lance Bass showed off his trimmed pecs and abs by going shirtless while on the beach in Miami on Thursday.

There's nothing like soaking up the sun with a six-pack.

Bill Gates reportedly bans his kids from using iPhones and other Apple products ... but the above device in his daughter's hand -- white headphones included -- looks eerily like a Steve Jobs machine.

Bill's wife Melinda and his 9-year-old daughter Phoebe went out for a light stroll Tuesday in Sydney, Australia -- and we're not 100% sure from the picture ... but it sure looks like Phoebe's holding on to what appears to be an iPhone.

So, we gotta ask ...

Rumors that Katy Perry and Russell Brand are calling off their marriage have just been fueled by explosive new photos ... of Russell in London ... NOT wearing his wedding ring.

The "Get Him to the Greek" star was in the West End earlier today, half a world away from his wife, who has been vacationing in Hawaii ... wearing nothing but bikinis.

The couple spent XMAS 7,000 AAdvantage miles apart. They tied the knot just over a year ago last October.

In one of the first pics of the couple in public, Lady Gaga strolled with her hot new "Vampire Diaries" boyfriend Taylor Kinney in California recently.

The couple met on the set of Gaga's video for "You and I," where Kinney played her love interest.

So far no signs of a bad romance.

Just when you thought he couldn't get any frickin' hotter, Ryan Gosling left a mixed martial arts class looking all buff and worked out in Hollywood on Wednesday.

The 31-year-old is training for his role in the upcoming film "Only God Forgives."

One thing's for sure, Gosling doesn't need a magazine to make him the sexiest man alive!

Still showing no sign of bringing back "Chappelle's Show," comic god Dave Chappelle flaunted his shockingly ripped physique at an ice cream shop in the Bahamas today ... where he's vacationing with his wife and kids.

Takes us back to the glory days of "Half Baked" ... motherf**ker said ice cream b!!!!

It's been years since Brooke Burns was on "Baywatch," but you'd never know it based on her smokin' hot bikini body in Maui on Tuesday.

The 33-year-old "You Deserve It" game show host recently got engaged to "Warrior" director Gavin O'Connor.

For Brooke, life really is a beach.

Ben Stiller proved he's still got those "Zoolander" looks and moves by showing off his 46-year-old ripped, buff shirtless bod in Hawaii on Tuesday.

Blue Steel isn't the only thing that never gets old.

Multilingual Swiss model Nena Ristic exercised her gift of the gab in Miami on Christmas Eve -- chatting up several eager men on the beach ... including AC Milan soccer star Kevin-Prince Boateng (left).

Nena speaks five languages -- English, French, German, Serbian, and Italian ... not counting Assamese.

Sofia Vergara may have been on vacation this weekend in Mexico ... but her bikini top was stuck working overtime.

Your move, Katy Perry.

Former "Scrubs" stars Zach Braff and Donald Faison -- who played inseparable man friends J.D. and Turk on the show -- hung out in real-life yesterday during a totally platonic trip to Hawaii.

"There's nothing gay about it, in our eyes." -- J.D and Turk

Kim Kardashian took her turn on Santa's lap during the Kardashian family's Christmas Eve party this weekend?

So we ask ...

Katy Perry spent her Xmas Day frolicking around in the ocean off the beaches of Hawaii with some friends ... but without hubby Russell Brand.