Celebrity Star Tracks: Tuesday, July 19, 2011 By People Staff Updated on January 24, 2022 01:04 PM Share Tweet Pin Email Trending Videos 01 of 15 GAM ON! Fame Move over, Lady Gaga! Rihanna makes her own pantless fashion statement on Monday, beating the New York City heat with some shirty behavior. 02 of 15 BUDDY SYSTEM Jamie McCarthy/WireImage Flirty costars – and future Marine Corps Ball mates – Justin Timberlake and Mila Kunis have a close encounter on Monday at the New York City premiere of their July 22 movie, Friends with Benefits. 03 of 15 SUNNY SMILE Fame Just over a week after welcoming baby boy Bing into the world, new mom Kate Hudson enjoys a sandy afternoon in Malibu, Calif., with her other main men, son Ryder, 7, and fiancé Matthew Bellamy (not pictured), on Monday. 04 of 15 ON THE MARKET X17 After a family trip to the farmer's market over the weekend, Jennifer Garner spends a little one-on-one time with 2-year-old daughter Seraphina at the Brentwood Country Mart in Brentwood, Calif., on Monday. 05 of 15 MEET THE PREZ Gaz Shirley/Kevin Perkins/Pacific Coast News Talk about a monumental meeting! Shenae Grimes gets a hands-on history lesson Monday, cozying up to a replica of the iconic Lincoln Memorial while on location for 90210 in Brentwood, Calif. a 06 of 15 SHORTS STROLL London Entertainment/Splash News Online A cutoffs-clad Halle Berry stays in step with adorable daughter Nahla, 3, during a Monday afternoon out in Santa Monica, Calif. 07 of 15 URBAN 'COWBOYS' James Devaney/WireImage Hi-ho Letter-ford, away! In N.Y.C. to promote his July 29 movie Cowboys amp Aliens, Harrison Ford horses around with Late Show host David Letterman outside the Ed Sullivan Theater on Monday. 08 of 15 SHADY BEHAVIOR Fame Occasional wedding-crasher Justin Bieber enjoys a sunny solo adventure on Monday in Los Angeles. 09 of 15 SHORT & SWEET Albert Michael/Startraks Vanessa Hudgens models a short crop – like the one she sports in her new movie – at Neutrogena's Wave for Change event Monday alongside fellow brand ambassador Hayden Panettiere in L.A. 10 of 15 'ROME'-ANTIC STROLL Flynet Penélope Cruz shows her stripes with hubby Javier Bardem on the set of her latest collaboration with Woody Allen, Bop Decameron, in Rome, Italy, on Monday. 11 of 15 STRING THEORY INF Someone's raising the Miami heat index! Whitney Port makes a bikini adjustment while emerging from the surf in Miami Beach on Monday. 12 of 15 IN A 'DASH' Freddie Baez/Startraks Bride-to-be Kim Kardashian shops close to home Monday at her very own DASH boutique in New York's Soho neighborhood. 13 of 15 BAG OF TRICKS Doug Meszler/Splash News Online Ditching her panda instincts, Lady Gaga gets all laced up Monday for her radio interview with Howard Stern in New York City. 14 of 15 FOOD RUN Flynet Following her royal encounter with Duchess Catherine, Reese Witherspoon keeps it simply chic in an LBD during a lunch date in Brentwood, Calif., on Monday. 15 of 15 FRENCH DRESSING Eliot Press/Bauer-Griffin On the lookout for some relaxation? Catherine Zeta-Jones and husband Michael Douglas take in the Mediterranean scenery Monday while vacationing in Saint-Tropez.