Pete Wentz

Times Square in NYC was heating up as the cast of CW’s hottest show Gossip Girl attended the opening of the American Eagle Outfitters Flagship Store opening party.

The big gossip of the night was watching Leighton Meester take over the mic and perform for the crowd that brought in Jessica Szohr, Michelle Trachtenberg, Ashlee Simpson, Entourage's Adrian Grenier among others. Leighton sang her new single "Somebody to Love” while Pete Wentz took on the turntables.

The AE store is 25,000 square-feet in the heart of Times Square. VIP guests walked an interactive, subway-themed red carpet featuring an American Eagle accessories cart and were the first to explore the brand's four floors of New York-exclusive offerings. Guests personalized their own American Eagle hoodies, received trucker hats painted by New York graffiti artists and shopped for limited-edition aerie underwear with graphics of New York neighborhoods. In a nod to Times Square's cinematic spirit, New Yorker’s were treated to inside access to the event through live streaming on American Eagle’s 15,000-square-feet exterior LED screens.

Seems like shopping is getting more interesting in NYC thanks to AE!

Wet Republic was off-the-hook last weekend as the infamous Simpson family rolled in to celebrate Ashlee Simpson's 25th birthday. Her entourage included sister Jessica Simpson, dad Joe Simpson, mom Tina Simpson, husband Pete Wentz and a few close friends.

The Melrose Place star arrived in style wearing a black romper, fedora and of course leopard wedges from her big sister’s self-titled shoe line, while Jessica opted to wear a sheer black cover-up and black heels. While on the red carpet, Ashlee dished about the stunning Chanel shoes Pete gave her for her birthday and gushed about how lucky she is to have such a wonderful family, husband and son.

Ashlee and family officially kicked off the celebration inside one of Wet Republic’s bungalows when the gorgeous redhead was presented with a delicious three-tiered cake topped-off with cupcakes. Everyone in the bungalow gathered around the starlet to sing her “Happy Birthday.”

During her celebration, Ashlee got on the mic and requested the DJ to play Beyonce’s “Single Ladies” and asked all the bikini-clad females to do their version of the famous dance. She then did her adaptation of the dance for everyone to see as they cheered her on.

The energetic birthday girl enjoyed the atmosphere of Wet republic and her admirers so much that she even jumped down into a crowd of female fans and danced with them. Pete Wentz wasn’t too far behind as he and their security guard stayed close by to protect his beautiful wife.

Happy birthday, Ash!