Bruce Willis and Karen McDougal Photo by: Bauer-Griffin
Bruce Willis & Lady Friend Get Ice Cream in Saint-Tropez | Bruce Willis
• Bruce Willis, sharing some ice cream with Karen McDougal, a former Playboy Playmate of the Year, during a vacation in Saint-Tropez. The pair split off for a bit, with Willis stopping in for a haircut at Jacques Dessange and a walk around the town's Quai St. Joseph, while McDougal went shopping. The pair also took a beachside stroll, and headed to lunch at Le Voile Rouge beachclub.

• Paris Hilton, hiding out (and crouching down) in the back of a the Diesel bookstore at the Malibu Country Mart. Why the covert tactics? A bookstore source tells us that the heiress just didn't want her picture taken by the throng of paparazzi – especially since a local police officer was outside to check out the commotion. Hilton stayed in the store for about 10 minutes, then headed next door to Pet Headquarters, where she browsed through the dog-leash section but left empty-handed. Hilton wasn't as camera shy in this store, posing for pictures with fellow pet lovers.

• Paul McCartney, taking in a James Taylor concert as part of the Hampton Social @ Ross concert series with a group that included an unidentified female friend, his daughter Stella and her husband. McCartney even showed off some fun dance moves for his daughter. Other celebs in attendance: Mischa Barton, Mary-Kate and Ashley Olsen, a pregnant Jill Hennessy and Christie Brinkley, who briefly chatted with the former Beatle.

• With T.R. Knight holding her hand, Drew Barrymore took Las Vegas by storm to celebrate the birthday of a longtime friend. Barrymore and her posse began with dinner at Stack Restaurant and Bar where they enjoyed steak and Kobe sashimi. Later, the group took in the Beatles-inspired Cirque du Soleil show, LOVE, and after the performance, Barrymore, Knight and company hit up Jet Nightclub for more good times. A source tells us: "She and T.R. [held] hands all night." At the club, the group hung out in a VIP area behind the deejay booth, though Barrymore "was dancing so much that she hardly sat down," a source tells us.

Periyali Photo by: Courtesy Periyali
Caught in the Act!| Bruce Willis
• Lucy Liu, dining with four guests at Greek restaurant Periyali in New York City. Just a week after her last meal there – where she was welcomed with a shower of rose pedals (a restaurant tradition bestowed upon special guests) – Liu returned. This time, she ate the house specialties, including octopus and lamb chops.

• A stunning and single Dita Von Teese, having a girls' night out at West Hollywood's Chateau Marmont. Dressed in a slimming grey-and-black sheath, Von Teese and her friends dined in the garden area, while people kept looking over and staring. The group immediately ordered water and a round of mojitos for all, sitting at their round table and telling stories over dinner.

• By JENNIFER GARCIA, MARK GRAY, KRISTEN MASCIA, PETER MIKELBANK, JEFFREY SLONIM and DANIEL J. VARGAS

Monday's Couples Watch >