HOLLYWOOD, NEW YORK & AROUND THE WORLD -- Thursday, December 4, 2008 in NYC -- Lindsay Lohan and girlfriend Sam Ronson made it a point to hit every hot party... they started out the night by spreading some Christmas cheer at the MySpace Holiday Party at hotspot Tenjune. Sam DJ'd the party while Lindsay spent some quality time with mom Dina and the Tenjune owners...

Tons of more sightings... after the jump!

Hollywood, New York & Las Vegas -- Thursday, November 13 in NYC -- Harry Connick Jr. and Chris Meloni hanging out with the Muppets to help launch the Muppet Whatnot Workshop at FAO Schwartz... Julianne Moore and her husband Bart Freundlich at the Hugo Boss event chatting with "Mad Men" actor John Slattery and his wife, Thalia... Rosie O'Donnell on a special date out with her son at the premiere of "Billy Elliot" on Broadway.

Wednesday, November 12 in NYC -- FORD Models Karla Devine, Sveva Alviti and Elena K along with actress Zoe McClellan, Rosario Dawson, Sabrina Bryan and others attended the launch of "Awareness: Inspiring Stories About How To Make A Difference" at the Kenneth Cole New York store in Grand Central...

And In LA -- Jessica Biel at the Heart of Los Angeles charity event at the Biltmore downtown -- She was being honored for her service to the organization... Valerie Bertinelli eating at Katsuya in Studio City... Jamie Lee Curtis at eyebrow guru Anastasia's in Beverly Hills explaining to the ladies at the reception desk how she plans to thwart the waiting paparazzi by sneaking out the back door and making her way through an alley to the parking garage.

Plus, many more!

NEW YORK, HOLLYWOOD & BEYOND... -- Thursday, October 30 in NYC: Mariah Carey and husband Nick Cannon dressed as firefighters leaving her apartment and getting onto a fire truck to attend a pre-Halloween bash at club Marquee... Katie Holmes and Suri Cruise wearing matching pumpkin orange Halloween costumes as they left their home... Sarah Jessica Parker making calls on her cell phone to undecided voters at the phone bank at Obama's NY headquarters... Carlos Leon giving fitness tips at the pre-Halloween gala event to promote the Carlos Leon fitness center that he designed at the Crescent Club Luxury Condo in Long Island City, NY...

Tons of more sightings... inside!!!