Best star snaps of the week: Celebs enjoy the ‘dog’ days of summer

Amanda Seyfried, Jon Hamm and Demi Moore enjoy the 'dog' days of summer.

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BACK TO THE BOARDROOM: Jon Hamm (left) and John Slattery welcome pup Splash to the "Mad Men" fam while out in the Hamptons.

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PUPPY IN HER POCKET?: Demi Moore treats Pilaf to a five-star dinner and, hopefully, a doggie bag for a late-night snack.

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ON THE JOB WITH MOM: On the set of "The Crowded Room" in Brooklyn, Amanda Seyfried and her longtime pal Finn take their mandated breaks.

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ABSOLUTELY FABULOUS: Life is a party when you're part of her posse! Kate Beckinsale (top) clutches Clive while being silly with Gabriella Morpeth.

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NO FISHY BUSINESS HERE: Never one to pass up a good photo op, Brie Larson flashes a peace sign in full scuba gear.

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SEINFELDS OF THE TIME: Naomi Watts (from left), Jerry Seinfeld, Jessica Seinfeld and Julianne Moore gather to celebrate the 20-plus years of Jessica's hard work as the founder of Good+Foundation.

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WHEN LIFE GIVES HER LEMONS: Jennifer Lopez takes the color inspiration and decks herself out in 1960s-style swimwear.

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BLOOM'S BADA BOOM: Being in Australia doesn't mean that Orlando Bloom shirks his workout routine.

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ONE COOL PUSSYCAT: Nicole Scherzinger knows how to catch gnarly waves out on the water.

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POWER HOUR: With Moon Boots in hand, Billie Eilish revels in the post-gym glow after a three-hour session.

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POUTY IN PINK: With a glass in her hand and sunshine on her face, Vanessa Hudgens enjoys the luxe life aboard a yacht.

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LAKESIDE LOVERS: Cindy Crawford and hubby Rande Gerber play to the suburban crowd and strike a cute pose on a dock.

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TATTED AND TAN: David Beckham sure knows how to take advantage of a day off by spending time on his yacht in Miami.

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UNDER HER UMBRELLA: Jennifer Lawrence tries to take cover from the heat on a coffee run in New York City.

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COME SAIL AWAY: Kate Middleton can't hide her high pony or brilliant smile under a helmet during a visit with the Great Britain Sail Grand Prix team.

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STOOP SWEETIE: Michelle Williams is peak summer style -- even pregnant with her third child in the hottest of months.

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