-- Karina Smirnoff fueling up with FRS Healthy Energy while shopping for a wedding dress in NYC.
-- Petra Nemcova enjoying the Son in Law eggs at NYC's Betel.
-- Real Housewives of Beverly Hills star Kyle Richards sipping Diet Pepsi Skinny and TY KU Cocktails at the FitPerez Holiday Health Bash in L.A.
PHOTOS: Celebs' favorite workout spots
-- 24's Carlos Bernard drinking Kona Deep water at the 24 Marathon event benefiting My Hope for Children in Hollywood.
-- Rachel Bilson and Minka Kelly checking out the William Rast for Target collection in L.A.
-- Sherri Shepherd playing Santa Claus at WWE Tribute to the Troops in Ft. Hood, Texas.
-- Jay Sean picking up the Kim Kardashian fragrance tote bag at the H&M lounge at the Z100 Jingle Ball in NYC.
-- Doug Reinhardt winning the "Fight For Humanity" against nightlife maven Jeff Ader at the Somaly Mam Foundation's annual event at Cipriani Wall Street in NYC.
-- Hilary Duff relaxing with a girlfriend at the Colony Palms Hotel in Palm Springs, Calif.
PHOTOS: How the stars get pampered
-- Justin Bieber watching Trey Songz and Usher in concert at Madison Square Garden in NYC.
-- Cory Monteith and Odette Yustman hanging out at the Hollywood Style Awards at the Palazzo in Las Vegas.
-- Lance Bass and Jersey Shore's Vinny Guadagnino eating dinner separately at MPD in NYC.
-- Maroon 5 frontman Adam Levine enjoying the mini bar while staying at The James Chicago.
-- Matthew McConaughey sitting at the bar at Whiskey Blue in New Orleans with a couple friends, enjoying a few glasses of Carpe Diem Pinot Noir.
-- Vera Wang dining with Olympian Evan Lysacek at Mia in Caesars Atlantic City while in town for the Caesars Tribute: A Salute to the Golden Age of American Skating event.
-- DJ Pauly D drinking Belvedere Intense while hanging out at Greenhouse in NYC.
PHOTOS: Where the Jersey Shore cast hangs out
-- Ramona Singer and her fellow NYC housewives dancing to daughter Avery's guest DJ appearance at her very own Winter Wonderland Sweet Sixteen, thrown by VP Events.
-- Stephen Dorff listening to DJ Equal spin at 1Oak in NYC.
-- Mark Wahlberg chatting with producer Ryan Kavanaugh during the Cinema Society party for The Fighter, hosted by JP Morgan Chase Foundation at the Top of the Standard in NYC.
-- Adrian Grenier nursing a 25-year Macallan before going on stage to help founder Scott Harrison raise over $1 million for Charity:Wall at the Metropolitan Museum of Art in NYC.
-- Sasha performing while The A-List cast celebrated celebrity photographer Mike Ruiz at the grand-opening of Industry Bar in NYC.
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