Audrina Patridge Waves A Flag, Emmy Rossum Eats Cotton Candy

Credit: Chris Graythen/Getty Images for NASCAR

- Audrina Patridge waving the green flag prior to start of the NASCAR Sprint Cup Series Pepsi 500 in Fontana, CA.

- Dennis Quaid and his band The Sharks performing at Aqua Restaurant & Lounge in Beverly Hills, CA.

- Kim Kardashian arriving in a Volkswagen TDI Clean Diesel Tourareg to the the Hollywood Style Awards in LA.

- Michael Bolton bringing a black tie crowd to its feet by singing in Italian at the Alfred Mann Gala in Santa Monica, CA.

- India.Arie celebrating her birthday with Brooke Shields at the U2 concert in Atlanta.

- Emmy Rossum eating cotton candy at the grand opening of W Hotel Washington DC.

See the day's top celeb photos.

- Dennis Rodman drinking a Grey Goose cocktail at Asian restaurant Sunda in Chicago.

- Hugh Jackman
and the Scissor Sisters rocking out at Kylie Minogue's show at NYC's Hammerstein Ballroom.

- Mischa Barton hanging out at the SONY VAIO launch event at Guastavino's in NYC.

- Nick Lachey dining at Fornelleto at Borgata in Atlantic City on a break from the national Everybody Wins Tour.

- Alessandra Ambrosio taking a break from Victoria's Secret Fashion Model search to show her daughter the shark tank at the Hotel Gansevoort South Beach.  

- Kelly Bensimon chatting with Jill Zarin's mother Gloria at Alene Too in Boca Raton, FL.

- Michael Imperioli enjoying a panini and a glass of red wine during a solo lunch at Scuderia in NYC.
- Vince Vaughn hanging with Chicago Bears quarterback Jay Cutler at Stone Lotus in Chicago.