Renee Zellweger, typing away on her BlackBerry after ordering two double soy lattes at a midtown Manhattan Starbucks. The actress wore Juicy sweatpants and a hooded jacket.
Christina Aguilera, giving a shout-out to husband Jordan Bratman during a performance at Motorola's 8th Anniversary party at the Hollywood Palladium. Before singing "Understand," she told the crowd, "It's actually about my husband. In every relationship, there are rocky times, but in the end, we're gonna sail through it." The celeb-filled crowd included Lindsay Lohan, Paris Hilton, Heather Locklear and David Spade (who whispered intimately to each other in a banquette), Zach Braff, Donald Faison (with gal pal CaCee Cobb), Jesse Metcalfe and Nicollette Sheridan, who wore aviator shades despite the late hour.
Michelle Trachtenberg, Ja Rule and Danny Masterson, partying at a Casino Royale-themed party at New York City club Tenjune. DJ AM hosted a spinning contest to remix the 007 theme song.
David Spade and Chris Rock, sitting at a private outside table at Hollywood club Les Deux. At one point in the evening, Paris Hilton and Nicole Richie joined the funny guys. Before Rock left, he visited Prince, who sat upstairs.
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Lorraine Bracco, buying a $1,000 pair of swanky brown lizard cowboy boots at chic Western boutique Cowboy Cool in Dallas. The store's owner jokingly reports that the actress asked him, "How am I supposed to get these damn boots off after I have had three martinis?" The Sopranos star was in town as a celebrity guest speaker for the Mental Health Association of Greater Dallas Prism Award dinner.
MICHAEL BOWLES / LFI
Justin Timberlake, having a business lunch at Asia de Cuba at the Mondrian Hotel in L.A. He feasted on dishes including tuna tartare and spiced spare ribs.
By MARK DAGOSTINO, TIFFANY HOPKINS, CHRISTINE KILPATRICK, MOLLY LOPEZ, KELLY LUMPKINS, PRIYA MOHAN, JEFFREY SLONIM and JENNY SUNDEL