LONDON, MARCH 7 Wearing a Louis Vuitton scarf as a halter top, a giddy Uma Thurman gets a hold of the Be Cool coster John Travolta at the London premiere of their comedy.
HOLLYWOOD, MARCH 5 Sporting a necklace bearing her 1-year-old daughter's name, Brooke Shields offers rowan a shoulder to lie on during a charity benefit for Stuart House, a facility that helps sexually abused children.
SAN JUAN, PUERTO RICO, MARCH 5 During Usher's live Showtime concert One Night, One Star: Usher Live, Surprise guest Beyoncé gets boogie-licious—she danced but didn't sing—while he performs "Bad Girl."
DUBAI, UNITED ARAB EMIRATES, MARCH 6 Kelly Rowland catches a wave at the Wild Wadi water park. The Destiny's Child singer was in the country to cheer on her pals Serena and Venus Williams at the Dubai Tennis Championships.
CARSON, CALIF., MARCH 4 For love and the game: Tennis fans Kevin Costner and Christine Baumgartner keep an eye on the action during Andy Roddick's first-round Davis Cup match against Croatia's Mario Ancic.
LOS ANGELES, MARCH 6 Decked out in Day-Glo Pumas, Robin Williams embraces Halle Berry at the premiere of their animated feature Robots.
NEW YORK CITY. MARCH 6 Matt Damon makes a casual entrance at the premiere of Don't Move, an Italian drama starring his friend Penélope Cruz. After the two hugged, Damon told Cruz, "I ran down here. I was at the gym."
PARIS, MARCH 2 Gwen Stefani does her best Greek goddess act in a gold lamé Dior gown at the launch party for Les Girls, a book of photos of the legendary Parisian cabaret the Lido.
NEW YORK CITY, MARCH 4 Matthew McConaughey strolls through the Big Apple with his Sahara costar and real-life sweetie Penélope Cruz.
LOS ANGELES, MARCH 2 A stylish Mischa Barton steps out in a Corey Lynn Calter slip dress and a Rachel Leigh turquoise gate necklace after dinner at Koi. The O.C. star recently celebrated her one-year anniversary with boyfriend Brandon Davis.
SYDNEY, MARCH 2 Anna Nicole Smith rides high on the Tumble Bug with her lawyer Howard K. Stern at Luna Park. The next evening, the TrimSpa spokeswoman presented a trophy at the first MTV Australia Video Music Awards.
LOS ANGELES, MARCH 6 Trophy wife: Britney Spears has her arms full with bags, a pocketbook and her Chihuahua Bitbit after a shopping spree at the celeb-friendly boutique Kitson.
COLUMBUS, OHIO, MARCH 4 While hosting the Ms. Fitness International championships, former bodybuilder and current California governor Aronold Schwarzenegger hands Jen Hendershott the trophy for the fitness champion.
LONDON, MARCH 2 Here comes the son: Fashion designer Stella McCartney cradles her 5-day-old son, Miller, as she and husband Alasdhair Willis, a former magazine publisher, leave the hospital. Miller is Stella's first child and singer Paul McCartney's third grandchild.