Celebrity Star Tracks - Friday, April 13, 2007 By People Staff Published on April 13, 2007 05:10 PM Share Tweet Pin Email Trending Videos 01 of 14 SKIP TO IT Gaz Shirley/Pacific coast news After putting some mileage on his new elliptical machine, Matthew McConaughey skips to the next workout – old-school jump rope! – in Malibu on Thursday. 02 of 14 BEAM HER UP Humberto Carreno/startraks A woman of many boots, Mischa Barton steps out in New York (or, outer space?) in a pair of solar system-inspired kicks while shopping in SoHo with pooch Ziggy on Thursday. 03 of 14 HOME PRIDE Getty Nicole Kidman proudly displays her Order of Australia medal, which she received during a ceremony in Canberra, Australia, on Friday. Kidman, who is currently home shooting a Baz Luhrmann film, earned the honor for her contributions to the performing arts and her charity work. 04 of 14 SHE'S NO WALLFLOWER Jamie McCarthy/WireImage After keeping close company with new beau Pete Wentz, Ashlee Simpson goes solo to the opening of the fashion-themed New York club Runway on Thursday. The singer told PEOPLE on the way to there, "A little dancing never hurt." 05 of 14 RAINY DAY WOMAN Hector Vallenilla/ Pacific coast news A day after feting designer friend Tom Ford, Kate Hudson braves the wet conditions in New York on Thursday in pursuit of a sweet treat. 06 of 14 HER ROOTS Bret Thompsett/ Pacific coast news Continuing to embrace her Southern roots, Britney Spears dons a Country Girl Jean Brand straw hat Thursday for another shopping excursion in Los Angeles. 07 of 14 OUT OF THE DOGHOUSE Kevin Reece/ Splash News online Snoop Dogg catches the action between L.A.'s two home teams, the Clippers and the Lakers, at the Staples Center on Thursday. Who to root for? Either way, the rapper comes out a winner: He recently copped a plea agreement that spared him jail time on guns and weapons charges. 08 of 14 PLAY IT, SPINDERELLA Jun Sato/WireImage After arriving in Tokyo earlier in the week, Lindsay Lohan doesn't miss a beat Thursday as she spins tunes at designer pal Charlotte Ronson's "Endless Fun" party (girls no cover charge!) at nightclub Warehouse. 09 of 14 LONDON BEATS Ross Robinson/WENN Justin Timberlake arrives Thursday at a West London recording studio, where the pop star is working with fellow music superstar Madonna (as a producer) and writing tunes with Timbaland. 10 of 14 PURPLE REIGN Lisa Maree Williams/Getty On the final stop of his two-week tour Down Under, John Mayer basks in the spotlight while performing Thursday at the Sydney Entertainment Centre. Next up: Mayer takes his show to Canada, kicking off his tour in Toronto on April 17. 11 of 14 GIDDY UP BIG AUSTRALIA/Andy Athineos/Mike Emory/BEImages Like costar Nicole Kidman, it's Hugh Jackman's turn to saddle up for his role in Baz Luhrmann's adventure film Australia in Sydney's Centennial Park on Thursday. 12 of 14 MERRY GO ROUND Flynet Back from her Hawaiian getaway, a relaxed Kelly Clarkson heads to West Hollywood hot spot Koi for dinner on Wednesday. The inaugural Idol winner is due to return to the Idol stage on April 25, where she'll perform live on the Idol Gives Back special. 13 of 14 WHO'S THAT GIRL Alpha /Landov It's flashback '80s for Geri Halliwell as she heads to her London hotel on Thursday wearing a Material Girl-inspired look. While she's at it, Halliwell is also channeling Madonna's career move: The former Spice Girl is penning a series of children's books. 14 of 14 HIGH TIMES Ramey Wrapped up in a color-coordinated doorag to match the rest of his monochromatic ensemble, April Fool's jokester Keith Richards is in high spirits Thursday after lunching at London's San Lorenzo restaurant. The Rolling Stones guitarist made headlines recently for his remark that he snorted his father's ashes along with some cocaine – which turned out to be a joke.