The Black Eyed Peas treating the crowd to a spontaneous performance at Butter NC in Charlotte, North Carolina.
Leonardo DiCaprio browsing through Nanette Lepore in NYC with girlfriend Bar Refaeli.
Sienna Miller celebrating Matthew Williamson's debut of his Fall 2010 Collection in London with Belvedere martinis.
Shakira meeting with President Obama at the White House to discuss their shared interest in early childhood development and universal education.
Lindsay Lohan partying with her mom Dina at The Pool After Dark at Harrah's in Atlantic City.
Jersey Shore's Vinny Guadagnino treating his mom to a spa day at The Daily's Beauty Bar at Townhouse Spa in NYC.
See the day's top celeb pics.
Justin Timberlake performing with FreeSol, the newest group on his music label, at the William Rast afterparty at Hudson Terrace in NYC.
Chanel Iman celebrating her Modelinia cover at the Mercedes-Benz Star Lounge in NYC.
Jessica Lowndes dancing with girlfriends at the opening of bar210 in Beverly Hills.
Cindy Crawford playing with her kids at the Bowling for Best Buddies event presented by Audi at the Lucky Strike Lanes and Lounge in L.A.
Tinsley Mortimer getting her teeth whitened by Dr. Steven Davidowitz at Luxury Dentistry On Sutton Place in NYC.
Mena Suvari singing along to Empire State of Mind at the G-Star afterparty at Tenjune in NYC.
Drew Barrymore shopping at the Sue Devitt Beauty counter at Barney’s New York in Beverly Hills.
Khloe Kardashian Odom drinking Three-O “Rangtang” cocktails at the Rangtang Launch party at Quo in NYC.
