— Vanessa Hudgens and Brittany Snow hanging out at the Belvedere bar at The Plaza in NYC.
— Real Housewives of New York City star Alex McCord and Simon Van Kempen sitting front row at the Rolando Santana fashion show at Exit Art NYC.
— Ron Rifkin and Carla Gugino dining at NYC's ABC Kitchen.
— Diane Kruger celebrating her Gotham Magazine cover at the Library Bar at NYC's Paramount Hotel.
— Kim Kardashian sending Pinkberry "swirly grams" to her mom Kris Jenner in L.A.
— La La Vazquez taking her son Kiyan for a haircut at Cozy's Cuts for Kids in NYC.
— Blake Lively, Kelly Osbourne and Eve celebrating the debut of the Marchesa Fall 2011 Collection at the Lambs Club at The Chatwal in NYC (sponsored by Range Rover).
— Natasha Bedingfield dancing up a storm with her shoes off at DJ Cassidy and Questlove's new Rock/Freak party at the Hudson Hotel's Good Units in NYC.
— Snooki having a quiet dinner with her boyfriend Jionni LaValle at STK in L.A.
— Kellan Lutz making his way to the Mercedes Benz Star Lounge in NYC after the Calvin Klein fashion show in search of food and caffeine.
— Paris Hilton wearing an Abed Mahfouz dress to Jimmy Iovine's party in L.A.
— Penn Badgley and Leighton Meester filming scenes for Gossip Girl at Paul Smith's 5th Avenue store in NYC.
— Real Housewives of New York City's Sonja Morgan walking the red carpet with her poodle Marley at Cesar Canine Cuisine's Puppy Love at Yappy Hour in NYC, hosted by animalfair.com's Wendy Diamond.
— LeAnn Rimes and Eddie Cibrian holding hands at the Smirnoff People's Challenge suite at the Grammy pre-awards lounge in L.A.
— Rose McGowan listening to tunes by DJ Alexandra Richards at the launch of B Brian Atwood shoe line in NYC.
— LL Cool J telling Russian pop star Sasha that Moscow is one of his favorite cities in the world on the Grammy Awards red carpet in L.A.
— Kid Cudi, David Banner and John Forte having drinks together at Soho House in NYC.
— B.o.B. wearing a Delta captain's hat and hanging out in the airline's seats with John Legend at a pre-Grammy Awards party at the Mayor's mansion in L.A.
— G-Star Raw's newest spokesmodel Gemma Arterton joking with Rosario Dawson in the front row of the brand's Fall 2011 runway show at NYC's Lincoln Center.
— Audrina Patridge and The Situation partying at the Pool After Dark at Harrah's Resort in Atlantic City.
— Natasha Bedingfield and Nicole Scherzinger singing a duet of "Unwritten" at the Godiva Chocolate Vodka sponsored Women of Music Celebration in L.A.
— Irina Shayk and boyfriend Cristiano Ronaldo sharing a platter of chicken satays and vegetable samosa sticks at Sports Illustrated cover reveal party at Pranna Restaurant in NYC.
— Matthew McConaughey getting two glasses of Kim Crawford Pinot Noir for girlfriend Camila Alves at a fashion show in NYC.
Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!