Celebrity Star Tracks: Monday, August 11, 2014 ... like a diamond! The singer stuns during a walk through Santa Monica, California. Plus: Jennifer Lopez, Idris Elba & much more By People Staff Updated on January 21, 2022 06:01 PM Share Tweet Pin Email Trending Videos 01 of 30 CHANGE OF A DRESS Splash News Online Rihanna goes metallic in a shiny dress and gold jewelry in Santa Monica, California, on Sunday. 02 of 30 SUNNY SPIRITS Splash News Online Smile and say 'Sunday'! Jessica Chastain is a happy camper while out in Brentwood, California. 03 of 30 FAMILY REUNION AKM-GSI Jennifer Lopez reunites with on-screen Maid in Manhattan son Tyler Posey – who happens to be wearing way less clothes than mom! – at Sunday's Teen Choice Awards in L.A. 04 of 30 MICHELE IN THE MIDDLE Frank Micelotta/PictureGroup Lucky lady! Lea Michele finds herself stuck between Vampire Diaries stars Ian Somerhalder and Paul Wesley Sunday night backstage at the Teen Choice Awards in Los Angeles. 05 of 30 IF THE CROWN FITS … Mark Sullivan/WireImage Also at Sunday's Teen Choice Awards in L.A.: Modern Family's Nolan Gould, who tries on a royally awesome accessory backstage with actress Joey King. 06 of 30 ALL IN A ROW Kevin Mazur/Fox/WireImage Birthday girl Kylie enjoys the view from the audience alongside sisters Kendall Jenner and Kim Kardashian, who won big for their reality show at Sunday's Teen Choice Awards in L.A. 07 of 30 'WIGGLE' ROOM Steve Granitz/WireImage Jason Derulo gets some sweet support from ladylove Jordin Sparks at the Teen Choice Awards, where he took the stage to perform a medley of his hits "Wiggle" and "Talk Dirty." 08 of 30 FULLY LOADED Neil P. Mockford/GC Images Idris Elba shows off his sizable gun while filming Friday on the London set of his new drama, A Hundred Streets. 09 of 30 PILLOW TALK Pacific Coast News Bed, Baby and Beyond? Mom-to-be Rachel Bilson picks up a few pregnancy essentials with boyfriend Hayden Christensen in L.A. on Sunday. 10 of 30 FLOWER GIRL Pacific Coast News Oooh are those from Joe? Sofia Vergara carries a beautiful bouquet of red roses from a certain admirer in L.A. on Sunday. 11 of 30 SHOW OFF FameFlynet He's the host having the most … fun! Antonio Banderas dresses (and dances) the part for the Starlite Gala fashion show in Marbella, Spain, on Sunday. 12 of 30 THINGS THAT GO BUMP National Photo Group Mom's on the move! Mila Kunis's lunch in L.A. on Sunday calls for a basic black sheath. 13 of 30 SOLDIER ON Chris Clark/Landov An armed and fabulous Katy Perry belts out her hits during her concert in Grand Rapids, Michigan, on Sunday. 14 of 30 GALAXY GIRL BroadImage Anna Faris heads out in Brentwood, California, sans her Star-Lord on Sunday. 15 of 30 FEELING GROUNDED Splash News Online Katie Holmes is ready to roll after landing via helicopter in East Hampton, New York, on Sunday. 16 of 30 SEEING 'STARS' Paul Zimmerman/Getty Kourtney Kardashian stylishly covers up her baby bump to attend Saturday's Women's Health-hosted Party Under the Stars with partner Scott Disick in Bridgehampton, New York. 17 of 30 TWICE AS NICE Denise Truscello/Getty She's still the one that we want – but make that two! Olivia Newton-John gives us a double dose of summer lovin' at Saturday's unveiling of her new Madame Tussauds wax figure in Las Vegas. 18 of 30 HE'S SO FLY BroadImage Headphones, sunglasses, some new purchases? Channing Tatum keeps his essentials close by as he makes his way through Los Angeles International Airport on Saturday. 19 of 30 CLOTHES CALL Jason LaVeris/FilmMagic It's a fashionable affair for Lucy Hale, who dresses the part for the Saturday launch of her new Hollister collection in Los Angeles. 20 of 30 ONE FOR THE BOOKS Sonia Moskowitz/Getty Alec Baldwin finds himself in good company with wife Hilaria and chef Giada De Laurentiis at Saturday's Authors Night at the East Hampton Library in New York. (Baldwin is a founding co-chair and Laurentiis is an honorary co-chair of the organization.) 21 of 30 Purple Reign Larry Marano/Getty Jared Leto rules the stage – in flowing, kingly garb, no less – while performing with his band Thirty Seconds to Mars in West Palm Beach, Florida, on Friday. 22 of 30 Sparks from Parks Splash News Online Goofy Parks and Recreation pals Chris Pratt and Aubrey Plaza have a red-carpet reunion on Friday at a screening of Life After Beth at L.A.'s Ace Hotel. 23 of 30 On the Ball Michael Kovac/WireImage The guy's got bounce! Josh Hutcherson shows off his baller moves at the third annual Josh Hutcherson Celebrity Basketball Game, held Friday at Nokia Plaza in L.A. 24 of 30 MAIN SQUEEZE Janet Mayer/Splash News Online What a lucky lady! Connie Britton cuddles up to country cutie Luke Bryan during a visit to Good Morning America in New York's Central Park on Friday. 25 of 30 NO REGRETS AKM-GSI After enjoying a night out with her girlfriends, Kendra Wilkinson lets her shirt do the talking while running errands in Sherman Oaks, California, on Friday. 26 of 30 RIDE ON Splash News Online Surfs up! Matt Damon catches a wave while on vacation in Costa Rica on Friday. 27 of 30 RAY OF SUNSHINE FameFlynet Reese Witherspoon sports the perfect summer look on her way into a nail salon on Friday in Brentwood, California. 28 of 30 IN THE BUFF FameFlynet Mark Wahlberg shows off his really toned arms while filming a scene for Ted 2 on Friday in Boston. 29 of 30 BLUE NOTE X17online.com Naomi Watts stays in the shade(s) en route to a workout Friday in Brentwood, California. 30 of 30 CITY GIRL AKM-GSI Kate Mara is anything but mellow in yellow on Friday, showing off her bright summer ensemble while shopping in New York City.