People.com Celebrity Star Tracks: Thursday, April 25, 2013 Hudson brings good vibes to Letterman in New York. Plus: Demi Moore, Prince Harry, Jon Hamm and more By People Staff Updated on January 21, 2022 04:37 PM Share Tweet Pin Email 01 of 16 IN HARMONY Richie Buxo/Splash News Online Kate Hudson keeps the peace Wednesday near the New York City set of the Late Show with David Letterman, where she promoted her new thriller, The Reluctant Fundamentalist. 02 of 16 NICE APPEARANCE Todd Williamson/Invision/AP Nothing haunts Demi Moore – not even an ongoing divorce battle with ex Ashton Kutcher – as the radiant star walks the red carpet Wednesday at Target's AFI Night at the Movies screening of her classic 1990 film, Ghost, at Hollywood's ArcLight Cinema. 03 of 16 BATTLE STAR Eddie Mulholland/Rex USA Prince Harry gets punchy with an eager opponent while visiting the Russell Youth Club in Nottingham, England, on Thursday. 04 of 16 ARM-Y STRONG Alberto E. Rodriguez/WireImage World's Most Beautiful Woman Gwyneth Paltrow finds herself all wrapped up in costar Robert Downey Jr.'s arms Wednesday night at the Hollywood premiere of their latest blockbuster, Iron Man 3. 05 of 16 HEAD TO HEAD Landov Jon Hamm and Jennifer Westfeldt make for a cozy couple after exiting New York's Russian Tea Room on Wednesday following an after-party for Broadway show I'll Eat You Last: A Chat with Sue Mengers. 06 of 16 FAN FAVORITE AKM-GSI Before heading out in New York City, a smiling Rihanna stops to pose for pics with fans near her hotel on Wednesday. 07 of 16 THINK TANK Frank Micelotta/Invision/AP Beyoncé and Salma Hayek share matching smiles and wardrobes Wednesday after the singer's concert at France's Palais Omnisports de Paris-Bercy arena. The two women are also the co-founders of the Chime for Change women's empowerment campaign. 08 of 16 GRAPE EXPECTATIONS Jason LaVeris/FilmMagic Is she a produce-r now? Vanessa Hudgens reaches for a healthy snack at Wednesday's SKYY Infusions Moscato Grape vodka launch party at Greystone Manor in West Hollywood. 09 of 16 BY THE LETTER AKM-GSI Frat's all, folks! Zac Efron gets into the spirit of Greek life Wednesday while filming his new movie, Townies, in Los Angeles. 10 of 16 TIGHT SITUATION As America's Got Talent auditions roll on, new judge Heidi Klum gets red-y for anything at L.A.'s Pantages Theatre Wednesday. 11 of 16 FINDING HER VOICE Slaven Vlasic/Getty After spending time with Justin Bieber, it's back to work for Selena Gomez, who breaks into laughter during Wednesday's visit to New York radio station Z100 and the Elvis Duran morning show. 12 of 16 WHAT A SIGHT! AKM-GSI Gwen Stefani leads the way Wednesday as she and 4-year-old son Zuma – sporting a droopy red bandana – arrive at school in Beverly Hills. 13 of 16 ALL TIED UP FameFlynet Mark Wahlberg cuts a fine figure Wednesday on his way to the White House in Washington, D.C., where the Pain & Gain star discussed improving graduation rates. 14 of 16 HIP HIP HOORAY! AKM-GSI Cute skinny jeans, cozy ski cap and snuggly baby – no wonder Hilary Duff is smiling as she and 13-month-old son Luca head out together Wednesday in Sherman Oaks, Calif. 15 of 16 STEP TO IT Evan Agostini/Invision/AP Emma Stone makes a mad dash past a billboard promoting Revlon's lash potion mascara, for which Stone serves as spokesmodel, Wednesday in New York City. 16 of 16 BRIGHT SPOT INF Victoria Beckham and daughter Harper, 21 months, add a spot of color to their ensembles during a mother-daughter day trip in London on Wednesday.