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.

Kourtney Kardashian Flaunts Pregnancy Curves in Plunging Mini-Dress  —  Kourtney Kardashian isn't using her current pregnancy as an excuse to dress down.  —  PHOTOS: Look back on Kourtney's first pregnancy  —  The 32-year-old E! reality star, who's expecting her second child …

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.

Ricky Martin Plans To Marry Boyfriend on Jan. 28 in New York  —  Puerto Rican singer Ricky Martin and his boyfriend Carlos Gonzalez will marry on Jan. 28 in New York, the El Nuevo Dia newspaper reported on its Web site Sunday.  —  Martin and his partner, according to a source close …

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 …

Brandi Glanville “Drunkenly” Weds MMA Manager Darin Harvey  —  Brandi Glanville is once again a married woman — but “not for long.”  —  The 38-year-old Real Housewives of Beverly Hills star tied the knot on a whim with Mixed Martial Arts manager Darin Harvey over the weekend, Us Weekly can confirm.

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.