— Hayden Panettiere hanging out with tattoo artist Johnny McDevitt at Express Rocks! at the Music Cafe at the Hard Rock Hotel in Chicago.
— Black Eyed Peas frontman Will.I.Am taking over the DJ booth at the Pool After Dark at Harrah’s Resort Atlantic City.
— Elisabeth Rohm enjoying ESPA spa treatments at Acqualina Resort & Spa on the Beach in Miami Beach.
— Jill Zarin eating two chocolate covered roses at Sugar Factory in Las Vegas.
PHOTOS: Today's top celebrity pics
— Brody Jenner sipping a Bud Light at La Brea Studios in L.A.
— Jessica Szohr and Ed Westwick watching the Black Keys perform at the TOM Shoes sponsored concert at the Hotel Sax in Chicago.
— Gabe Saporta and Shannen Doherty judging a regional competition as part of GQ magazine and Bombay Sapphire's search for the nation's "most inspired" bartender at Trump Soho Hotel's rooftop bar in NYC.
— Anthony Mackie chatting with friends at the launch of Marc Ecko's fall collection in New York City.
— Kanye West, O'Neal McKnight and Marc Jacobs spending thousands of dollars at the Prada and Adidas stores in NYC.
— David Arquette and Neve Campbell grabbing a quick bite at HUB51 before catching the late-night Phoenix concert at House of Blues, Chicago.
— M.C. Hammer getting into the DJ booth at the TalentMaven.com launch party at Hudson Terrace in NYC.
— Julia Roberts enjoying creme brulee while discussing her new movie with friends at Paris Commune in NYC.
— Green Day bandmembers playing with the new Samsung Galaxy S smartphone during dinner at Sunda in Chicago.
— Shania Twain meeting her long-time stylist Frankie Foye at the Hair Rules salon in NYC.
— Emma Watson showing off her new pixie haircut at Indochine in NYC.
— Karina Smirnoff dancing at the Schick Intuition Plus KISS & Tell Party at Stone Rose in NYC.
— Donna Karan chatting with fashion designer Stacy Igel at Super Saturday in Water Mill, NY.
