Kim Kardashian and NeNe Leakes of “The Real Housewives of Atlanta” hit the town together Wednesday night in Atlanta, where KK is filming a guest role on “Drop Dead Diva,” the Lifetime show filmed in Peachtree City. The two reality stars had dinner at STK, a swank new steakhouse in Midtown and, as you’d expect, both were dressed to impress. Both were carrying their Hermes Birkin bags!

Making for quite the fun-filled experience happening simultaneously in four cities (LA, NYC, New Orleans and Chicago), the ”Plot Your Escape: Four Concerts. Countless Celebrities. 1 Epic Night,” by Caesars Entertainment, brought out celebs like Mariah Carey, Diddy, Kourtney Kardashian, Ashlee Simpson, Mary J. Blige, Gavin DeGraw, Lil Wayne and Katharine McPhee.

Jake Gyllenhaal was spotted at The Soft Serve Fruit Co. on 17th Street. The Hollywood hunk came in alone, wearing jeans, baseball cap and ordered a “Crunchy Salty Sundae” – YUM!

Enrique Iglesias was spotted at LAVO Las Vegas this week.  The Latin singer and a group of his friends commanded a dance floor table enjoying there night as they and took in the sounds of DJ Cedric Gervais!

Brad Pitt the guitarist? Pitt took son, Maddox to the local Guitar Center in Hollywood this week! The Oscar nominated actor along with his son left with a newly purchased guitar and amplifier!

FOR MORE STAR SIGHTINGS THIS WEEK…KEEP READING!

© RD / Kabik / Retna Digital

Celebrities hosted parties from New York to LA and we have your roundup of the hottest parties from the hottest stars!

Fergie attended the New Year’s Eve party at The Mirage’s 1 OAK, planting a kiss on husband Josh Duhamel at midnight. Her Black Eyed Peas bandmate, Will.i.am., was at the Strip nightclub Surrender at the Encore at Wynn Las Vegas!

“Jersey Shore” star Vinny Guadagnino hosted Joonbug.com Beat the Beats New Year’s Eve party at the AMC 34th Street movie theater in NYC, where the website transformed the movie theater into a club for one night only!

Lady Gaga was the special guest of Mayor Michael Bloomberg and did the honors of dropping the ball in Times Square. Gaga’s performance as part of Dick Clark’s Rockin’ New Year’s Eve, which also featured Ryan Seacrest and Jenny McCarthy, will be broadcast both in the United States and in Japan. Other celebs performing in Times Square as part of MTV’s New Year’s Eve special included Demi Lovato, Selena Gomez and Jason Derulo.

DJ-to-the-stars DJ Cassidy manned the 1′s and 2′s at Diddy‘s private house party in Miami Beach.

Robin Thicke shared his sultry musical stylings at a performance at the Delano Hotel in the MIA. His wife, Paula Patton, was also there for a kiss at midnight!

John Legend rang in the new year in style with a performance of his smooth, R&B sound at the Pearl at the Palms Casino Resort!

KEEP READING FOR MORE NEW YEARS EVE 2012 STAR SIGHTINGS…

PHOTO: Dimitrios Kambouris/WireImage.com

How do you get stars like Glee’s Lea Michele, Terrence Howard, Donnie Wahlberg, Nick Lachey (and wife Vanessa Minnillo) and more to the middle of Connecticut for a weekend?

Well, if you’re Mohegan Sun and you’re celebrating your 15th Anniversary, you invite the “creme de la creme” of celebs, media and even celeb chefs Bobby Flay and Todd English to experience a one-of-a-kid set by Jennifer “J. Lo” Lopez – performing in a skin tight head-to-toe Swarovski crystallized onesie!

The “American Idol” judge took the stage by storm performing many (or most) of her greatest hits with high energy. At one point though, J.Lo got a little choked up before paying homage to her lost loves (Diddy, Ben Affleck and finally and most recently Marc Anthony).

“You want to talk about love? I can talk about love. Oh, the stories!” she said during a heartfelt speech to the audience before breaking out with her hit “If You Had My Love.” Afterwards she said, “That’s the first song I wrote about love. And this is the last song I wrote about love. A lot has happened since then!”

Later in the night, stars like Kelly Bensimon. Jaime Pressly, Tinsley Mortimer (and boyfriend Brian Mazza) and Jesse Metcalfe partied the night away at the official after party deejayed by DJ Kiss.

Check out HOT SHOTS from the star-studded weekend — after the jump!

ALL PHOTOS: Charley Gallay/WireImage

The man responsible for discovering Justin Bieber, entertainment mogul Scott “Scooter” Braun, threw the birthday extravaganza of the decade on Saturday night (June 18) in LA!

He is considered the most powerful man in entertainment under the age of 30, and he welcomed it with an appropriate roster of A-list celebs including Kim Kadarshian, Mary J Blige, Adam Levine, Paris Hilton, Nicky Hilton, David Katzenberg, Jaden Smith, Wilmer Valderama, and Rita Wilson (who we’re told came with Chester “Chet.”)

VIEW “HOT SHOTS!” FROM INSIDE THE STAR-STUDDED BASH:

At the beginning of the night, Scooter was roasted by close friends and family during dinner where best friend and business partner Usher Raymond served as Master of Ceremonies alongside his brother, Adam Braun.

Scooter was surprised by a touching video montage of messages from friends that couldn’t be there including Will Smith, Diddy, and his ATL buddies Ludacris and Keri Hilson.

At one point in the night, Usher performed a bunch of his hits before prodigy Justin Bieber joined him onstage. The phenomenon hopped on the drums and also performed his hits “Baby” and “Never Say Never” with buddy Jaden Smith for the star-studded room.

Bieber next introduced the next surprise performer…MC Hammer!!

The legend performed new hits and old ones including “Too Legit To Quit.” The party continued all night long with additional impromptu performances by Asher Roth for “I Love College” and Adam Levine for “This Love.”

If that’s not an A-list party, we don’t know what is! Happy Birthday, Scooter!

Kevin Jonas, wife Danielle, Diddy, Khloe Kardashian and Ryan Seacrest cozy up for a “HOT SHOT!” at The Top of The Standard on Monday (June 6) in NYC.

All these stars, and more, were on hand to celebrate the launch of the new iHeartRadio iPad App.

iHeartRadio.com and the iHeartRadio mobile app delivers more than 750 of America’s favorite radio stations from 150 cities. iHeartRadio features commercial-free digital only stations (which we love!); specialized artist stations (who doesn’t love that?); non-music radio (ehhh) and national programming including 24/7 Comedy Radio, White House Brief, Rock Nation, Fox Sports Radio, AT40 with Ryan Seacrest and celebrity-hosted channels from Christina Aguilera, The Eagles and Maroon 5.

During the soiree, Seacrest tweeted: “Check out my new fav toy, the @iHeartRadio iPad app! Hey @Z100NewYork play some @britneyspears! http://bit.ly/j2FGPm #iHeartParty”

As Rebecca Black would say: fun, fun, fun, fun. (Now, it’d be nice if we had an iPad…)

Photo: Retna Digital

Its that time of year again — the teams are on fire, and celebrities come out of the woodwork in order to catch a glimpse of the NBA Playoff action!

Pop sensation Joe Jonas (along with Mekhi Phifer, Don Johnson, Andy Garcia, Ricky Martin, and Chord Overstreet) unfortunately had to watch the LA Lakers lose to the Dallas Mavericks on Monday, May 2nd at Staples Center in Los Angeles.

The Lakers weren’t the only team getting some celebrity support, Rick Ross, Diddy, and Drake all were on the sidelines cheering on the Miami Heat!

Who’s team are you on?!

PHOTO: Seth Browarnik/WorldRedEye.com

Reality TV stars Adrienne Bailon and Audrina Patridge pose for a “HOT SHOT!” at the two year anniversary of The Chandelier Room at the W Hotel in Hoboken, NJ, on Wednesday (April 27).

As far as the girls’ sparklers, all you need to know is Swizz Beats and Diddy performed while renowned DJ Cassidy spun.

Needless to say, everyone had a great time! Especially Albie Manzo (of Bravo’s Real Housewives of New Jersey) who we spotted “macking” on Audrina. At the end of the evening, though, the two reality stars were spotted parting ways: Audrina and crew headed into “the city” while Albie and his (entire) family stayed back at their local hangout, The Chandellier Room, partying ’til the wee hours of the night.

Audrina and Albie… Y’all think they’d be a cute couple?! (MJ says yes!)

Check out more HOT SHOTS from the event in our gallery below!