New York socialite and reality TV star Olivia Palermo and her mega-hot German-born model boyfriend Johannes Huebl spent a romantic 1st day of 2012 on the beach in St. Barth.

While other less fortunate celebs were raking in the dough hosting parties in Vegas and New York, these luckier two were soaking up the sun (and the rosé) on the French West Indies island.

This girl works around models all day, as a publicist for Diane Von Furstenburg, but she could be a model herself!

After counting down to midnight in Times Square with Dick Clark's Rockin' New Year's Eve with Ryan Seacrest, Justin Bieber took some time out to do what else? ... Play video games!

The teenage singer brought along girlfriend Selena Gomez to an Activision party, where he danced and played Skylanders Spyro's Adventure.

Only good, clean fun for J&S!

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Second-time parents-to-be, Kourtney Kardashian and Scott Disick greeted the New Year with a series of passionate kisses and a toast with sparkling apple cider at Chateau Gardens in Las Vegas. The two embraced with the backdrop of the Bellagio fountains and fireworks display.

Kardashian, wearing a full-length black sequined Diane Von Furstenburg gown with a plunging neckline and leg-baring slit and Christian Louboutin heels, was visibly glowing as she gently held her baby bump. She accessorized her dress with a jeweled Judith Leiber handbag -- a Christmas gift from her mother, Kris Jenner.

Both Kardashian and Disick look forward to focusing on parenthood in the New Year, with Disick declaring, "My New Year's resolution is to appreciate life as much as I can." Kardashian added, "I want more family time and a little bit less work.”

Don't we all!

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Even in the cold temperatures of Colorado, LeAnn Rimes and hubby Eddie Cibrian manage to look hot! The 29-year-old country songstress posted this sexy shot on Twitter from the couple's second winter vacay (after a few days in Cabo) in Aspen.

The twosome, who will celebrate their one-year anniversary next month, have been hitting the slopes for the past week with Eddie's boys, Jake and Mason. Nothing like ringing in 2012 surrounded by family, and of course, beautiful snow.

First a trip to Cabo San Lucas ... then a vacay to Aspen for New Year's. We have a feeling these two will have their bags packed in the near future for yet another trip. Life is good for the Cibrians!

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Last night, Kanye West joined party host Fergie to celebrate the premiere of the highly anticipated 1 OAK Las Vegas at The Mirage on New Years Eve. After much speculation surrounding his twitter campaign to DJ on New Year's Eve, Kanye took the stage and thrilled party-goers with a 3 hour set. Dubbing himself YEEZYWORLDPEACE, Ye mixed tracks for Fergie, her hubby Josh Duhamel and some of the biggest names in Hollywood.

Despite being in the same city and amidst rumors that Kanye has been getting close with Kim K, the two did not spend NYE together and instead Kanye had a stunning brunette on his arm.

Mike "The Situation" Sorrentino and Good Charlotte kicked off an exciting New Year's weekend bash at Chateau Nightclub & Gardens at Paris Las Vegas last night. Reality star and fashionista, Nicole Richie, NBA legend, Julius "Dr. J" Erving, and gorgeous singer, Brandy, also celebrated the end of the year at the stylish nightclub.

Sorrentino is looking forward to getting some rest in 2012. "My New Year's resolution is to take it easy and relax more," said the Jersey Shore hunk.

But, that resolution would have to wait -- Sorrentino was anything but relaxed as he enjoyed celebrating the end of 2011. The MTV star yelled "Happy New Year" to fans and even threw his jewelry into the crowd.

Good Charlotte performed on the rooftop nightclub of Chateau Gardens. Brothers Joel and Benji Madden, as well as the rest of the band, gave fans an incredible once-in-a-lifetime performance under the Eiffel Tower of Paris Las Vegas as they sang "Lifestyles of the Rich and Famous," "Dance Floor Anthem" and more.

Nicole looked on and cheered for her man throughout the performance.

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At the brand new Hyde nightclub in Vegas' Bellagio hotel, special guest for the evening, Sophia Vergara, best known for her role as Gloria on TV sitcom Modern Family, arrived at the lounge looking stunning in a white, shimmering dress. When asked about her New Year’s Eve at Hyde, Sophia replied, “I’m very excited … I was a fan of Hyde in Los Angeles, so I’m sure [Hyde] in Vegas is going to be even more fabulous.”

Welcoming the New Year at Hyde Bellagio were Wilmer Valderrama, Joe Jonas, Leona Lewis, Eliza Dushku, Emile Hirsch, Lauren Conrad, Stephanie Pratt, Eric Stonestreet, Amber Lancaster and Lakers basketball player Rick Fox, among others.

Guests settled into their plush VIP tables as models in cellophane dresses posed around them holding celebratory New Year’s balloons. Songs like Tyga’s “Rack City” and Drake’s “Take Care,” featuring Rihanna, had clubgoers on their feet dancing and raising their glasses to a successful 2011.

Vergara pumped up the crowd as she counted down the remaining seconds of 2011. As the clock struck midnight, the iconic Fountains of Bellagio sprayed high above the Las Vegas Strip and gold and silver balloons filled with $100 bills fell from the ceiling. Throughout the venue, guests cheered, toasted and kissed to the year ahead.

She certainly knows how to make a mad dash!

Kourtney Kardashian was spotted running errands in Beverly Hills on Friday (literally!), and the pregnant reality TV starlet covered up her growing baby bump with a top from the family's Sears clothing line.

So what's she up to tonight? Kourtney and baby daddy Scott Disick (along with Joel and Benji Madden) are set to host a New Year's Eve bash at the Chateau Nightclub in Las Vegas, and she jetted out of LA about an hour ago. Last week Kourt tweeted, "Time for a fitting with @MonicaRoseStyle! What's a pregnant girl to wear for New Years Eve at Chateau in Vegas?! LOL!" Can't wait to see what she picks out!