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: How I'm Ringing in the New Year  —  It was just a year ago that Giuliana Rancic sat down with her husband Bill to write their New Year's resolutions for 2011.  —  Her goal was one many people make when a new year is on the horizon, she says.  In 2011, she vowed, she would eat less dessert.

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 …

Olivia Wilde & Jason Sudeikis: New Year's Day Stroll!  —  Olivia Wilde and boyfriend Jason Sudeikis keep close and share a sweet moment as they go for a stroll on New Years Day (January 1) in New York City.  —  The 27-year-old actress and 36-year-old SNL funnyman stopped to get a drink at Joe: The Art of Coffee.