People.com Celebrity Zac Efron Takes a Hike in Australia, Plus Jessica Alba, Justin Bieber and More From Hollywood to New York and everywhere in between, see what your favorite stars are up to By People Staff Published on April 1, 2021 06:00 AM Share Tweet Pin Email 01 of 99 Pack Your Bags Media-Mode / SplashNews.com Zac Efron and some friends go for a hike in the bush in the Blue Mountains outside of Sydney on Thursday. 02 of 99 Blaze(r) of Glory Bellocqimages/Bauer-Griffin/GC Images A masked up Jessica Alba enjoys a Wednesday shopping trip in L.A. 03 of 99 Think Pink BACKGRID Justin Bieber and wife Hailey (not pictured) leave dinner at the San Vicente Bungalows in West Hollywood on Wednesday night. 04 of 99 Stage Smiles Emma McIntyre/Getty Charlie Puth beams on Wednesday while performing in an interactive global e-concert live from the Yoop eSpace at Microsoft Theater in L.A. 05 of 99 Double Vision SplashNews.com Irina Shayk has our eyes playing tricks during the Mugler virtual spring 2021 runway show in Paris on Wednesday. 06 of 99 Something's Cooking Paul Archuleta/Getty Queer Eye's Bobby Berk gets to work in the kitchen on Wednesday while shooting a segment on Hallmark Channel's Home & Family in Universal City, California. 07 of 99 Red Carpet Return Astrid Stawiarz/Getty Dianna Agron attends the Shiva Baby premiere, sponsored by Heineken and Utopia Films, at The William Vale Hotel in Brooklyn on Tuesday night. 08 of 99 Carry On JP/Splash News Online Kristen Wiig has her hands full on Wednesday while grabbing lunch in Pasadena, California. 09 of 99 Splash Down The Image Direct Adam Brody gets suited up for a day of surfing in Malibu on Wednesday. 10 of 99 Laugh Factory The Image Direct John Waters cracks up Rachel Brosnahan as they film scenes for The Marvelous Mrs. Maisel in New York City on Wednesday. 11 of 99 On a Short Leash The Image Direct Naomi Watts and her pup soak up the sunshine during a walk around N.Y.C. on Wednesday. 12 of 99 Furry Friends Splash News Online Jordana Brewster gets an effusive snuggle from her pup while out in Brentwood, California, on Wednesday. 13 of 99 Laughs on Set James Devaney/GC Images Selena Gomez and Martin Short share a laugh while on the set of Only Murders in the Building in N.Y.C. on Tuesday. 14 of 99 California Casual Bauer-Griffin/GC Images Harrison Ford steps out in a black mask, shorts and sneakers on Tuesday in L.A. 15 of 99 Spotlight Smiles Paul Archuleta/Getty Tamera Mowry prepares to film on the set of Hallmark Channel's Home & Family at Universal Studios Hollywood on Tuesday in Universal City, California. 16 of 99 Night Out MEGA JAY-Z leaves dinner at Giorgio Baldi and heads into a Tesla on Tuesday in L.A. 17 of 99 Park Playtime Amy Schumer with son Gene. Ron Adar/SOPA Images/Shutterstock Amy Schumer and son Gene Fischer are out to play in Astoria Park in N.Y.C. on Tuesday. 18 of 99 Color Pop Jose Perez/Bauer-Griffin/GC Images Anthony Ramos wears a colorful matching set while filming out in N.Y.C. on Tuesday. 19 of 99 City Stroll Raymond Hall/GC Images Jodie Turner-Smith wears a comfy sweatsuit and a neon green bag while out in N.Y.C. on Tuesday. 20 of 99 Giggling Gal Jose Perez / SplashNews.com Rachel Brosnahan cracks up while filming The Marvelous Mrs. Maisel on Wednesday in downtown N.Y.C. 21 of 99 Cute Couple Matt Winkelmeyer/Getty Brian Austin Green and girlfriend Sharna Burgess attend a fundraiser benefitting Boo2Bullying, hosted by Cassie Scerbo, at Rafi Lounge on Tuesday in Malibu. 22 of 99 Model Mode Heidi Klum models on the side of a vintage yellow sports car outside of America's Got Talent on Tuesday in Pasadena. 23 of 99 What Gives? Howie Mandel arrives to film America's Got Talent wearing a wig on Tuesday. 24 of 99 Comfy Set Bauer-Griffin/GC Images Rumer Willis wears a comfy sweater and leggings while out in L.A. on Tuesday. 25 of 99 Work It Out Bauer-Griffin/GC Images Kaia Gerber steps out in athleisure while carrying a large water bottle on Tuesday in L.A. 26 of 99 Coming Soon The Image Direct Wesley Snipes is seen in character while filming on the set of a secret project with Kevin Hart on Monday in L.A. 27 of 99 Kid at Heart The Image Direct Isla Fisher has a little fun at the local playground in Sydney, Australia on Monday. 28 of 99 Puppy Love Matt Winkelmeyer/Getty Tara Reid poses with puppies at the ScotWeek red carpet launch party on Monday at Fairmont Miramar Hotel & Bungalows in Santa Monica. 29 of 99 'Double' Trouble Media-Mode / SplashNews.com Russell Crowe hits the tennis court with girlfriend Britney Thierot (not pictured) for a doubles match in Sydney on Friday. 30 of 99 Under the Radar The Image Direct Iman goes incognito in sunglasses and a face mask while out for a walk on Sunday in N.Y.C. 31 of 99 Out and About BACKGRID New mom Katy Perry is seen running errands in athletic wear on Monday in L.A. 32 of 99 Suited Up MEGA Al Pacino waves to fans while on the set of House of Gucci on Monday in Milan. 33 of 99 On the Run Marksman / MEGA Sebastian Stan is seen out for a jog after discussing rumors around him potentially playing the next Luke Skywalker on Monday in Beverly Hills. 34 of 99 Snack Time DIGGZY / SplashNews.com Rihanna steps out in strappy heels, a denim mini skirt and tropical button down for a trip to the grocery store on Tuesday in Beverly Hills. 35 of 99 Final Farewell Melissa Benoist is seen in great spirits while filming Supergirl's final season on Monday in Vancouver, Canada. 36 of 99 Classic LBD Splash News Online Sofía Vergara arrives in a sweet little black dress and heels to film America's Got Talent in Pasadena, California on Monday. 37 of 99 Black Tie Affair Tristan Fewings/Getty Eddie Izzard poses on the red carpet during the Six Minutes to Midnight photocall at the De La Warr Pavilion on Monday in Bexhill, England. 38 of 99 Model Moment Shutterstock Heidi Klum wears a self-referential shirt on Saturday while out in Los Angeles. 39 of 99 Piano Man Frazer Harrison/Getty Also on stage over the weekend: Craig Robinson, who performs at the Laugh Factory during a virtual telethon to support families of the Atlanta shooting victims in West Hollywood on Saturday. 40 of 99 Big Premiere Wendell Teodoro/Getty Keith Urban attends the Australian premiere of Hamilton at the Lyric Theatre in Sydney on Saturday. 41 of 99 Bright Spot BACKGRID Usher and girlfriend Jennifer Goicoechea have a date night at Nobu Malibu on Saturday. 42 of 99 Going Green Rachpoot/MEGA Christine Chiu stuns in green as she heads to dinner at Tesse in West Hollywood on Sunday. 43 of 99 Get Fit CrownMedia/MEGA Kendall Jenner leaves a gym in Beverly Hills on Saturday. 44 of 99 Pretty in Pink MEGA Winnie Harlow hits the beach in style, showing off her pink bikini during her Miami vacation on Sunday. 45 of 99 Lip Action James Devaney/GC Images Costars Chanté Adams and Michael B. Jordan continue filming Journal for Jordan in New York City. 46 of 99 A Vision NAACP/Shutterstock Regina King looks gorgeous in a custom Oscar de la Renta gown at the Watts Towers in Los Angeles during the 2021 NAACP Image Awards. 47 of 99 Flower Power KHAPGG/BACKGRID Tilda Swinton shops with a friend in Sydney, Australia. 48 of 99 Cup of Joe SplashNews.com Olivia Wilde goes on a coffee run in London. 49 of 99 Across the Pond Jules/SplashNews.com Leslie Mann films her new Amazon series The Power in London. 50 of 99 Promenade Stephen Crawshaw/BACKGRID Bridgerton's Phoebe Dynevor is spotted in Trafford, enjoying a sunny stroll with a friend. 51 of 99 White Hot BACKGRID Kylie Jenner steps out in Hollywood for dinner at The Nice Guy. 52 of 99 Good Vibes TheImageDirect.com Lucy Hale enjoys a coffee date with her friend in Los Angeles. 53 of 99 Model in Black BACKGRID Hailey Baldwin is dressed in all black for her dinner at Craig's restaurant in West Hollywood over the weekend. 54 of 99 Fist Bump Ethan Miller/Getty Images Oscar De La Hoya and Snoop Dogg share a moment on stage during a news conference for Triller Fight Club's inaugural 2021 boxing event at The Venetian in Las Vegas. 55 of 99 Giving Back Jerritt Clark/Getty Images Rapper YG gives away 4Hunnid Block Runner sneakers from The Flame footwear line at the Union Rescue Mission in Los Angeles. 56 of 99 Green Machine AbacaPress / SplashNews.com Bella Hadid keeps it light on Friday while shooting a fashion campaign in Brooklyn, New York. 57 of 99 Barefoot Dreams Media-Mode / SplashNews.com Liam Hemsworth heads for the beach in Byron Bay, Australia, on Friday. 58 of 99 Suit Yourself Felipe Ramales / SplashNews.com Addison Rae gets all dressed up on Friday for a visit to The Tonight Show studios in N.Y.C. 59 of 99 A Little Boost The Image Direct Lana Del Rey heads out for breakfast and coffee with her mother (not pictured) on Friday in L.A. 60 of 99 Sweet Life Courtesy Sugar Factory American Brasserie JoJo Siwa and girlfriend Kylie join the singer's family at Sugar Factory Century City in California on Thursday for birthday treats including the King Sundae. 61 of 99 Red Hot iamKevinWong.com / MEGA Kylie Jenner arrives at Justin Bieber's album release party in an eye-catching jumpsuit featuring sheer panels and cut-outs on Thursday at The Nice Guy in L.A. 62 of 99 Spring in Her Step Andrew Lipovsky/NBC/NBCU Photo Bank via Getty Maya Rudolph makes a grand entrance in a floral dress on Thursday's episode of The Tonight Show Starring Jimmy Fallon in N.Y.C. 63 of 99 Smiles on Set Jose Perez/Bauer-Griffin/GC Images Annie Murphy is seen filming an episode of Russian Doll on Thursday in N.Y.C. 64 of 99 Gang's All Here Cameron Spencer/Getty Taika Waititi, Isla Fisher, Chris Hemsworth and wife Elsa Pataky (not pictured) and Russell Crowe (bottom right) gather at the round three National Rugby League match between the South Sydney Rabbitohs and the Sydney Roosters on Friday in Sydney, Australia. 65 of 99 Off to the Races Charles Coates/Motorsport Images/Shutterstock British racing driver Lewis Hamilton arrives at the 2021 Formula One Bahrain Grand Prix on Friday in Sakhir, Bahrain. 66 of 99 Dog Days Gotham/GC Images Justin Theroux takes his dog Kuma for an afternoon stroll in N.Y.C. on Thursday. 67 of 99 Take Two James Devaney/GC Images Michael B. Jordan and Chanté Adams keep the mood light on the New York City set of A Journal for Jordan on Thursday. 68 of 99 Dressed to Impress SplashNews.com Claire Danes is back in costume on Thursday on the Maldon, England, set of The Essex Serpent. 69 of 99 Rolling Along The Image Direct Penn Badgley and costar Tati Gabrielle seem to have some big news while filming season 3 of You in Los Angeles on Thursday. 70 of 99 Team Vaccine Gina Ferazzi/AP/Shutterstock Arsenio Hall, Danny Trejo and Magic Johnson proudly pose with their COVID-19 vaccine cards after getting their shots, as part of a vaccination awareness event at USC, on Wednesday in L.A. 71 of 99 Dancing Queen Kevin Winter/Getty Julianne Hough performs onstage during the 24th Family Film Awards on Wednesday in Universal City, California. 72 of 99 Quiet on Set BACKGRID Regina Hall films a scene for her series Black Monday on Wednesday in downtown L.A. 73 of 99 Fighting for Equal Pay Margaret Purce (left) and Megan Rapinoe at the White House on March 24. Michael Reynolds / Pool via CNP / MediaPunch Megan Rapinoe and Margaret Purce take the podium prior to Equal Pay Day in the State Dining Room of the White House on Wednesday in Washington, D.C. 74 of 99 All Smiles Jen Lowery/MEGA Erika Jayne rocks a high pony while out for lunch with friends at Robata JINYA in West Hollywood. 75 of 99 Keeping Warm Giandomenico D'Angelo / IPA / SplashNews.com Jared Leto, who's been cast in Ridley Scott's House of Gucci, is spotted out wearing a blue puffer and beanie on Wednesday. 76 of 99 Walk It Out DIGGZY/JP / SplashNews.com Amy Adams masks up with a bandana while out for a walk in L.A.'s Griffith Park on Wednesday. 77 of 99 Red Alert BACKGRID Adam Lambert looks fabulous in red platforms while out to dinner with friends at Catch LA in West Hollywood. 78 of 99 Costume Check The Image Direct Elle Fanning is dressed in full costume while filming for her Hulu series The Great on Tuesday in Richmond Park, London. 79 of 99 Video Star Backgrid Jamie Foxx stands in the spotlight on the set of a music video on Tuesday in L.A. 80 of 99 Catch Up Sesh Backgrid Annie Murphy smiles while chatting on the phone on her walk through N.Y.C. on Wednesday. 81 of 99 Picturesque Paradise MEGA Rose McGowan enjoys a sunny beach day in Mexico on Tuesday. 82 of 99 Speaker Spotlight Seth Browarnik/startraksphoto.com Pharrell Williams takes the stage at The David Grutman Experience at FIU on Tuesday in Miami. 83 of 99 Back in Boston BACKGRID Ben Affleck is seen clean shaven and in costume on the set of George Clooney's film The Tender Bar on Monday in Boston. 84 of 99 Out on the Town DIGGZY / SplashNews.com Rihanna looks stunning in a pearlescent satin dress as she makes her way to dinner with friends on Tuesday night in L.A. 85 of 99 Taking on the Day SplashNews.com Olivia Wilde is plugged into her phone as she steps out Wednesday morning to grab coffee in London. 86 of 99 Set Sighting Jose Perez/Bauer-Griffin/GC Images Rachel Brosnahan wears a vibrant green satin dress and a bold red lip on the set of The Marvelous Mrs. Maisel on Tuesday in N.Y.C. 87 of 99 Face Off MediaPunch Venus Williams plays against Zarina Diyas at the 2021 Miami Open at Hard Rock Stadium on Tuesday in Miami Gardens, Florida. 88 of 99 Across the Pond Beretta/Sims/Shutterstock Gary Oldman is seen filming Apple TV's Slow Horses in Primrose Hill, London on Tuesday. 89 of 99 XOXO Jose Perez/Bauer-Griffin/GC Images Jeremy O. Harris and Whitney Peak are spotted on the set of Gossip Girl on Tuesday in N.Y.C. 90 of 99 Park Bound The Image Direct Gavin Rossdale heads to the park with his dog Chewy on Monday in L.A. 91 of 99 Off to Class Rachpoot/MEGA Kaia Gerber wears a sweater, leggings and sandals on her way to pilates on Tuesday in L.A. 92 of 99 Ready to Work Backgrid Matilda De Angelis leaves her trailer to film scenes for her latest movie Robbing Mussolini in Rome on Tuesday. 93 of 99 Star of the Show Demi Lovato. Rich Fury/Getty Demi Lovato takes the stage during the OBB premiere of her YouTube Originals Docuseries Demi Lovato: Dancing with the Devil on Monday in Beverly Hills. 94 of 99 Go for the Gold BACKGRID Jennifer Hudson shows off her street style while shopping for a ring on Monday in Beverly Hills. 95 of 99 Fight For It WWE Bad Bunny gets into the ring during Monday's episode of WWE show Monday Night Raw. 96 of 99 Denim Darling DIGGZY / SplashNews.com New mom Katharine McPhee returns to the American Idol set for a guest appearance on Monday in Hollywood. 97 of 99 Bumping Along The Image Direct Pregnant Hilary Duff is spotted running errands in L.A. on Monday. 98 of 99 Fun in the Sun BACKGRID Longtime pals Soleil Moon Frye and Brian Austin Green goof around at the beach on Monday in Malibu. 99 of 99 Keep it Classic Rachpoot/MEGA Winnie Harlow steps out in a black and white ensemble for dinner at Wally's in Beverly Hills on Monday.