-- Malin Akerman and Maria Menounos hanging out at Carrera Escape at the Chateau Marmont in West Hollywood.
-- Countess LuAnn de Lesseps getting her hair styled by Eugene Davidoff at Michael Fredo Salon on NYC's Upper East Side.
VIDEO: Watch LuAnn struggle to hit a high note
-- Reality star and PR guru Jonathan Cheban shooting a billboard for Wodka Vodka's new campaign in NYC's Times Square.
-- Kelly Rowland partying with Destiny's Child group members Beyonce and Michelle Williams at a party for her latest album "Here I Am" for the Moet Rose Lounge in NYC.
PHOTOS: Destiny's Child back in the day!
-- Sophia Bush running the 5k at the San Francisco Marathon to benefit the Nature Conservancy (50% of her customized Water Bobble proceeds went to the cause).
-- Lisa Gastineau, Maria Menounos, Brittny Gastineau and Patti Stanger chatting at the Gastineau Glamour event in Malibu - the girls sampled the Keratin Complex dry shampoo and VnC cocktails).
-- Harry Potter's Tom Felton hanging out at Vertigo Sky Lounge at Chicago's Dana Hotel and Spa.
PHOTOS: Harry Potter stars, then and now
-- Cameron Diaz and Alex Rodriguez working out side-by-side on the Stairmaster while listening to their iPods at Equinox South Beach.
-- Karina Smirnoff hanging out with her mom at the launch of Gilt City Atlanta.
-- Dita Von Teese launching her latest namesake cocktail - the "Cointreau MargaDita" in Dallas.
-- Rose Byrne rocking out at W's Symmetry Live concert at W South Beach Hotel & Residences.
-- AnnaLynne McCord talking to her sister Angel at the Voli Light Vodka sponsored Somaly Mam Foundation event at the SLS Hotel in Beverly Hills.
VIDEO: 5 more reasons to watch 90210
-- Jessica Szohr listening on as Jesse Marco played a special birthday shout out from DJ Pauly D for AKR PR's Amanda Ruisi at Avenue in NYC.
-- Ashley and Mary-Kate Olsen taking sake shots with their friends at Yellowtail in the Bellagio before continuing the party at Gold Boutique Nightclub & Lounge at the Aria Hotel in Vegas.
NEWS: Check out Jerry Ferrara's amazing slimdown
-- Entourage star Jerry Ferrara trading in his real cigarettes for two boxes of South Beach Smoke electronic cigarettes in L.A.
-- The Office's B.J. Novak celebrating his birthday in the Hollywood Hills, sipping on TY KU Sake with Aziz Ansari and castmate Mindy Kaling.
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