She's ripped! She's buff! She's up on one ski! Taking a break from a weekend celebration of aunt Eunice Shriver's 80th birthday (uncle Ted Kennedy and cousin Maria Shriver also attended), Caroline Kennedy Schlossberg, 43, ruled the waves in Hyannisport, Mass.

Sex and the City's Kristin Davis and her new beau, Alec Baldwin, were probably in a New York state of mind when they saw Billy Joel perform at a Southampton, N.Y., benefit for the STAR Foundation, which cautions about nuclear radiation.

In Chicago, Brooke Shields met up with a few musketeers at a Hollywood-back-lot-themed party for Fash Bash, a benefit for the arts and cancer research that the actress hosted.

And doggy makes three: Anne Heche and her fiancé, cameraman Coley Laffoon, who reportedly will marry next month, strolled in Manhattan with pooch Lucinda.

As he attempts recovery from alcohol problems, Ben Affleck went for a stroll in L.A. with his mom, Chris, during an approved day trip from his rehab center Promises.

Showing that at 45 he still has What Women Want, a toned-up Mel Gibson displayed tank-top form in Malibu. His war drama We Were Soldiers opens next year.

Scoring one for rock-star family values, Rolling Stone Keith Richards escorted his daughters Theodora (second from left), 16, and Alexandra, 15, and wife Patti Hansen to the Manhattan premiere of the comedy Lisa Picard Is Famous.

What a birthday girl wants: Now blonde and legal, actress Dominique Swain (background) celebrated her 21st birthday in L.A. with singer Christina Aguilera.

Gladiator, glad he ate it: In the midst of a national tour with his band 30 Odd Foot of Grunts, Oscar-winning actor Russell Crowe made a chicken run in Los Angeles.

Showboat: At 68, the remarkable Joan Collins—in face hat, sunglasses, two-piece suit and a tan, aboard a yacht off the Balearic Islands in Spain—continues to be, well, Joan Collins. The former Dynasty star was vacationing with her boyfriend, Peruvian theater-company manager Percy Gibson, 35.

You singin' "Happy Birthday" to me? Robert De Niro and Sean Penn, who costarred in the 1989 comedy We're No Angels, blew out all the candles at a New York City bash celebrating their joint Aug. 17 birthday. (Penn turned 41, De Niro, 58.)

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