It's a Perry happy new year  —  A happy looking Katy Perry celebrated New Year's Eve by partying with friends and flirting with a mystery man at Soho House in West Hollywood.  —  The superstar didn't let husband Russell Brand's divorce filing stop her from celebrating, and she spent the night dancing and laughing with friends.

Prince William & Kate Party with Pippa for New Year's  —  Prince William and Kate (left) and Pippa Middleton  —  Party like a royal!  —  Despite buzz that Prince William and Catherine would ring in the New Year at his father's sprawling Aberdeen, Scotland, estate, when it came time to celebrate …

Lindsay Lohan — Cops Called to L.A. Home Over Rogue Door Knocker  —  Cops Called to L.A. Home  —  Over Rogue Door Knocker  —  Cops were called to Lindsay Lohan's Venice Beach pad earlier this evening — after a strange, unidentified man came a-knockin' ... and Lindsay freaked the hell out.

Derek Jeter and Minka Kelly Rekindling Romance?  —  L'amour is in the air - again.  —  Five months after announcing their break-up, Derek Jeter and Minka Kelly appear to have rekindled their romance with a vacation in Paris, PEOPLE has learned.  —  Over the holiday weekend, the Yankee slugger …

Carnie Wilson still over 200 pounds: 'I'm looking forward to exercising'  —  Carnie Wilson and Tracey Gold and their families are starring on Celebrity Wife Swap in an episode to air tomorrow, January 3.  As is expected for this show their families are polar opposites.

JFK Jr. asked Madonna to pose as his mother  —  She was almost the First Lady Madonna.  —  John F. Kennedy Jr. asked the Material Girl to dress up as his mother for the cover of his magazine, George, but Madonna declined, insisting she would “never do [Jackie O] justice,” according to a new book.

LeBron James Is Engaged  —  LeBron James had more on his mind than just ringing in the new year on Saturday night.  —  At a New Year's Eve dinner and party at the Shelborne hotel in South Beach, the Miami Heat star, 27, proposed to his longtime girlfriend Savannah Brinson.

Giuliana Rancic Says Double Mastectomy Was ‘Hell’  —  Two and a half weeks after undergoing a double mastectomy, Giuliana Rancic is opening up about the excruciating operation and its complications.  —  “I knew this was going to be a tough surgery, but I in no way want to minimize it,” …

Lady GaGa, Justin Bieber, LMFAO, Drake wow New York in New Year spectacle - video  —  Lady GaGa led a whole host of stars bringing in 2012 in New York last night, as one million revellers took to the streets to mark the New Year.  —  The ‘Born This Way’ singer was joined by artists including Justin Bieber …

Jay-Z, Beyoncé Do New Year'S In Brooklyn  —  Our favorite couple visits Buttermilk Channel  —  As we've noted in the past, Beyoncé—and by extension, her husband Jay-Z—have immaculate restaurant taste.  So it's really no surprise that on our way out the door from celebrating …

YOU'RE A BIG FLOP, COC!  —  GEORDIE Shore babe Holly Hagan has branded X Factor wild child Frankie Cocozza a flop in bed.  —  Frankie boasted to millions of Xtra Factor viewers on live TV how he “banged” big-boobed MTV star Holly after hooking up at a party in October.