Celebrity Off-Duty Hollywood! From riding a roller coaster to chilling on the beach, see how the stars – Rihanna! Gwen! Heidi! – take a day off from the set and stage By Brian Orloff and Karen J. Quan Published on September 2, 2009 05:00 PM Share Tweet Pin Email Trending Videos 01 of 10 RIDING A ROLLER COASTER Mathew Imaging/WireImage Trading the studio – where she's currently working on a new album – for the amusement park, Rihanna works on her vocal range while riding the Tatsu roller coaster at Six Flags Magic Mountain in Valencia, Calif. 02 of 10 STROLLING Cousart-Ramirez-Rios/JFX Heidi Klum leaves the Runway for a martial arts class, picking up daughter Leni, 5, and son Henry (who turns 4 Sept. 12) from their lesson in Los Angeles Tuesday. Next stop? The family dropped by West Hollywood outdoor mall The Grove. 03 of 10 JOGGING Photonews/Splash News Online She may be filming the thriller Don't Be Afraid of the Dark in Australia, but off-set Katie Holmes gets her pulse racing in a different way – enjoying a jog with hubby Tom Cruise at Melbourne's Royal Botanical Gardens recently. 04 of 10 GRABBING COFFEE Respicio/JFX Fresh off a series of summer tour dates with Blink-182, Fall Out Boy Pete Wentz dives back into his role as domestic dad, making a coffee run in Beverly Hills Tuesday with 9-month-old son Bronx Mowgli. 05 of 10 PUMPING GAS Carlos Maidana/Garcia/Broadimage On a break from shooting her romantic comedy Valentine's Day alongside Ashton Kutcher, Jessica Alba stops to refuel at a Los Angeles-area gas station recently. 06 of 10 GOING TO THE MOVIES Agent 47/WENN With the ninth season of Dancing with the Stars revving up on Sept. 21, Derek Hough escapes dance practice with new partner Joanna Krupa for a movie date with ex-girlfriend Shannon Elizabeth at The Grove in West Hollywood. 07 of 10 BIKING INF After working hard in Paris on his latest film, Inception, Leonardo DiCaprio returns to the U.S. and unwinds with a bike ride through New York's SoHo neighborhood. 08 of 10 SIGHTSEEING Fame Pictures That's one novel pre-show routine! Hours before taking the stage for the first of three concerts at Madison Square Garden, Britney Spears relaxes with her boys Preston, 3 ½, and Jayden, 2 ½, on a pedicab ride through New York's Central Park. 09 of 10 GOLFING London Entertainment/Splash News Online Getting into the swing of things, LeAnn Rimes makes her first public outing with Eddie Cibrian (not pictured) during a round of golf at the Valencia Country Club in Valencia, Calif. 10 of 10 HANGING ON THE BEACH Bret Thompsett/Pacific Coast News Days after taking her boys to see dad Gavin Rossdale in concert at The Grove, Gwen Stefani turns down the volume for some sunny RampR with 1-year-old Zuma on the beach in Malibu. Also joining in the sand: Rossdale, who entertained 3-year-old son Kingston.