Celebrity Star Tracks: Monday, October 4, 2010 By People Staff Published on October 4, 2010 05:00 PM Share Tweet Pin Email Trending Videos 01 of 15 PINK LADIES Gustavo Munoz/Buzz Foto It's a girls' day out for Heidi Klum and daughters Lou, 11 months, and Leni, 6, as they shop their way through Beverly Hills, Calif., together on Sunday. 02 of 15 IN A DASH Saleem Elatab-AhmadElatab/Splash News Online Kim Kardashian takes her aunt duties seriously, keeping a tight hold on 9-month-old Mason as she dashes through New York's JFK Airport with proud parents Kourtney and Scott Disick on Sunday. 03 of 15 NATIVE DRESSING Koch Joerg/Abaca Guten Tag! Katy Perry gets into the spirit of Oktoberfest, donning a traditional Bavarian dirndl on the German variety show Wetten, dass…? in Munich on Saturday, where she performed her hit "Teenage Dream" and "Edelweiss" from The Sound of Music. 04 of 15 BAND TOGETHER Kevin Winter/Getty Yoko Ono gets a welcome visitor – Lady Gaga! – during her We Are Plastic Ono Band's concert at the Orpheum Theatre in L.A. on Saturday. "What a legendary band+mother," Gaga Tweeted during the performance commemorating late Beatle John Lennon's 70th birthday. 05 of 15 A BLAZE(R) GLORY Rex Stella McCartney and pal Liv Tyler show off their shared sense of style on Monday at the expectant designer's spring/summer 2011 fashion show during Paris Fashion Week. 06 of 15 SNOW BUNNIES TLeopold/Globe It's like Christmas in … October! Former Dancing with the Stars foes Melissa Joan Hart and Kelly Osbourne prepare to hit the slopes Sunday for a benefit with the U.S. Olympic ski and snowboarding teams in Malibu, Calif. 07 of 15 Men In Black INF Jesse Eisenberg, Andrew Garfield and Justin Timberlake strike a pose at the Paris premiere of The Social Network on Sunday in France. The film, about the rise of Facebook, topped the weekend box office in the States. 08 of 15 SHOP TO IT Fame Britney Spears brought beau Jason Trawick along on a trip to Toys R Us on Saturday, days after guest-starring on a Britney-centric Glee episode. 09 of 15 'WAR' & PEACE Bauer-Griffin Reese Witherspoon and newly-engaged co-star Tom Hardy (not pictured) film a pub scene on the Vancouver set of their upcoming action-comedy, This Means War, Friday. 10 of 15 SPECTATOR SPORT Pablo/SC/Flynet Take five! Soccer dad David Beckham and sons Romeo, 8, and Cruz, 5, break for snacks after a game in Brentwood, Calif., Thursday. 11 of 15 EAT & RUN Bauer-Griffin Catch him if you can! Leonardo DiCaprio attempts a quick getaway Thursday after a lunch date with model girlfriend, Bar Refaeli (not pictured), at Italian restaurant La Stresa in Paris. 12 of 15 CAPE TOWN Bauer-Griffin After singing at Roberto Cavalli's 40th Anniversary bash earlier this week in Paris, Kylie Minogue is back in rainy London Friday for a visit to BBC Radio One studios. 13 of 15 TRUE BREW Agency People Image/Sipa Everyone's German during Oktoberfest! Sexy Swede Alexander Skarsgard enjoys some festive fare (and friends) on Friday, joining some Bavarian beer girls for a True Blood photo call in Munich, Germany. 14 of 15 CHIC CHICK Abaca The writing's on the … balloon! Rachel Bilson defines her smart sense of style during Paris Fashion Week Friday, while arriving at the Christian Dior show at the scenic Jardins des Tuileries. 15 of 15 GIVE HER A HAND GSI Media Rebecca Romijn has her hands full, balancing lunch and her iPhone after leaving a Pilates class in Calabasas, Calif., on Friday.