The Stars Count Down to Summer!

Lindsay Lohan happily cools off in her two-piece with a four-legged friend during a dip in a lava-rock pond during a recent Hawaiian vacation in Maui.

One star who's ready to show off his hard body – a shirtless Chris Pine (aka Star Trek's Capt. Kirk), who catches some rays during a hike in Los Angeles.

Talk about some sweet relief! Dancing with the Stars pro Julianne Hough gets her licks in during an afternoon shopping spree with boyfriend Chuck Wicks (not pictured) at The Grove shopping center in L.A.

Go, Caribbean queen! Rihanna commands the stage – with her dance moves – while enjoying a reggae festival during a recent trip home to her native Barbados.

It's not all work and no play for Kelly Ripa! The talk-show host, who went on location in Miami for Live! With Regis and Kelly, makes a big splash with son Joaquin, 6, at a waterslide.

Cozy Dancing couple Karina Smirnoff and Maksim Chmerkovskiy get ready to tee off while spending a day at the Magic Castle mini golf and arcade in Sherman Oaks, Calif.

Even McSteamy needs to cool off! With Grey's Anatomy wrapped for the season, Eric Dane makes waves in Miami Beach, where he was spotted jet-skiing during a recent vacation.

Hugh Jackman and wife Deborra-Lee Furness pack up the kids (daughter Ava, 3, and son Oscar, 8) for a family getaway to Disneyland, where the foursome shared a snapshot with Mickey – and some lasting memories.