Jennifer Lopez sparkles while celebrating the launch of her latest single “Goin’ In” on Saturday (May 26) at the Hyde Bellagio Resort and Casino in Las Vegas.

The 42-year-old entertainer held hands with backup dancer and boyfriendCasper Smart as they made their way inside.
“Goin’ In” will be featured on the Step Up 4 soundtrack, and will be available for download on iTunes beginning June 17.

If you haven’t heard Jen‘s latest single,check it out here!

A friend of the Bajan beauty posted the composite photos on Twitter after Ri revealed she was doing a photo shoot for a new fragrance, aptly named Nude. Two and two makes four and we’re thinking the photo, featuring RiRi returning to shaggy blonde locks (after rocking dreads for her ‘American Idol’ performance and then long, black locks as of late), is for the ad campaign.

RiRi loves to show her skin, so a photo using her forearms as a bra and a censor bar is nothing new in her life nor ours. When you are as sensuous and sultry as Robyn Rihanna Fenty, you want to show off what the good Lord gave ya! It’s a very sultry selection of shots, as Ri’s mouth is agape in several.

The blonde look is temporary. She tweeted that she is back to black: “blonde was just for the shoot! I’m still black.”

We were going to ask if you guys are “over” topless shots of RiRi, but is that actually possible? Not if you are a boy with blood coursing through your veins.

Ri also tweeted that Nude is for da ladies and due out at the top of 2013.

Lots of our favorite pop divas made the annual Maxim Hot 100 list, which celebrates gorgeous, stunning, head-turning women who rock the men’s mag’s world. Katy Perry, Lea Michele and Victoria Justice all placed high, with Perry landing at the prestigious No. 4 position. Who’s hotter than the newly single Perry?

Well, model Bar Rafaeli and actresses Olivia Munn and Mila Kunis, that’s who, but it’s all relative.

Other pop starlets on the list were Rihanna (Not Top 5? WHAT?! Who’s making this list?), and quirky cuties like Zooey Deschanel and Katharine McPhee. Latin babes Jennifer Lopez and Shakira also placed, as did rap’s reigning queen Nicki Minaj.

The list also skewed young, with Selena Gomez and Miley Cyrus landing on the list. Taylor Swift was also selected, since, you know, you want to bring her home to mom!

Congrats to all the ladies who made the Maxim Hot 100 List! Also props to Stephen Colbert, for placing 69th. That didn’t get by us, especially his position.

One Direction were men in black at the ‘Men in Black III’ premiere. The Brit heartthrobs donned coordinating black and white outfits … and guns!

The adorable blokes brought along Nerf guns, which they reportedly used on photographers. Cheeky! The ‘What Makes You Beautiful’ singers took in the Will Smith film at the Ziegfield Theater in New York City, tweeting about what an awesome time they all had. (We’re guessing no one got slapped at this junket, but there may have been a rap battle or two.)

Liam Payne wrote, “mib3 was amazing go nd watch it met a lot of cool people tonight had a great time.” He also tweeted the star’s daughter, ‘Fireball’ rapper Willow Smith. “@OfficialWillow hey it was really good to meet you sorry we got cut off couldnt find you in the cinema after, looking forward to the film x.” So sweet!

The guys went stag to the premiere. Heartthrob Harry Styles was cougarfree for the event, and the guys with girlfriends — Liam Payne, Zayn Malik and Louis Tomlinson — didn’t bring them along for the guys’ night out. The band are kicking off their North American tour tonight in Fairfax, Va., so perhaps it was their means of a kickoff party, complete with weapons, aliens and movie stars. Not a bad way to start out a record breaking arena excursion!

Kate Upton is one of the most-talked about models in the world right now, and we have new pics that only re-confirm why!

The 19-year-old graced the cover of this year's Sports Illustrated Swimsuit Issue in a barely there string bikini, and sticking with what she knows best, Kate just posed for new shots for Beach Bunny swimwear.

 Modeling new suits in the Beach Bunny Bronze collection, the Florida-bred beauty strikes several poses in what appears to be some tropical paradise, but really ... we know you aren't looking at the landscape. 

Vivica A. Fox revealed her newly trimmed tresses at the New York City premiere of "Men in Black 3" on Wednesday.
 
The 47-year-old "Kill Bill" star stunned in her short and sexy new 'do ... completing her look with a sleek white pantsuit and delicate gold chains.
 
Vivica is loving the new look, tweeting:

Michelle Brown@ATLien24 May 12Cougar Swag! @MsVivicaFox Reveals Hot New Look! Love it or Hate It? [PHOTOS] shar.es/qqeF6

Vivica A. Fox
@MsVivicaFox@ATLien Well I gonna say! I Like this new look on me! Its the pleasure of not being afraid to try a new look! Luv the pix 2! Thankx ;-)

But she’s not the only celeb opting for a shorter style, click “Launch Gallery” below and check out all the stars that’ve gone from long hair to short!  

Aubrey O'Day has finally returned to her blonde roots. For months, the pop star has been sporting an unnatural red shade that had us asking "what is she they thinking?" week after week.

She showed off her new locks during the finale of "Celebrity Apprentice" on Sunday. Donald Trump ended up picking Arsenio Hall over Clay Aiken as the winner.

Now, if she'd only lose the spider-like eyelashes, she'd look even more beautiful!

New chapter means new haircut in Nick Jonas‘ world. The youngest Jo Bro lobbed off his signature curly cues, exchanging his familiar coif for a to-the-scalp buzz cut. With the onset of summer and warmer weather, going with shorter hair is a smart option.

Jonas tweeted: “New chapter. New haircut. #Iloveit.” Clearly, the singer is happy with his newly shorn look. We like it. He looks youthful (and a bit like a military cadet!). But it also represents a new beginning for him, given the text of his tweet. Since his run in the Broadway musical ‘How to Succeed in BusinessWithout Really Trying’ ended yesterday (May 20), the singer/actor is free to alter his look as he chooses.

With the Jo Bros parting with their label Hollywood after a long relationship and new music from the sibs on the horizon, that could be part of his “new chapter,” too.

Miley Cyrus is all grown up.

The 19-year-old singer/actress was white hot as she hit the red carpet at this year’s 2012 Billboard Music Awards in Las Vegas.

Dressed in low-plunging Jean Paul Gaultier number, Cyrus showed off an ample amount of cleavage and skin in the pants-less ensemble.
The “Can’t Be Tamed” singer has always had a great figure, but it seems as though she’s been losing more and more weight thanks to her gluten free diet, and daily pilates exercises.

Last week, she was spotted out and about in Miami, FL, and looked skinny in a pair of high-waisted shorts, along with a teeny black tube top.