MGK Surprises Fans at Lollapalooza in Chicago, Plus, Lin-Manuel Miranda, Heidi Klum, and More

Machine Gun Kelly surprises fans with a secret performance on the Bud Light Seltzer Sessions stage at Lollapalooza in Chicago.

Lin-Manuel Miranda attends the New York screening of his new Netflix movie Vivo at Village East.

Heidi Klum and Tom Kaulitz walk the LUISAVIAROMA for UNICEF Gala red carpet in Capri, Italy.

Arnold Schwarzenegger is spotted enjoying a cruiser bicycle outing with friends in Los Angeles.

Terry Crews jumps for joy while getting his own star on the Hollywood Walk of Fame in Hollywood.

Melissa Benoist goofs off in full costume on the set of Supergirl in Vancouver.

Chrissy Teigen and John Legend enjoy a sunny SoHo stroll in New York City.

Carey Mulligan is spotted in character in the first look at her new movie She Said in New York City.

Zoey Deutch gets goofy while filming her latest project on July 30 in N.Y.C.

JD Pardo hits the set of The Terminal List in Los Angeles on July 30.

Terry Crews brings his grandmother Eremelle Williams to the Hollywood Walk of Fame on July 30 as he receives his star in Los Angeles.

Rande Gerber and Cindy Crawford share a sweet moment while shopping in West Hollywood on July 29.

Jennifer Hudson poses with a dress once worn by Aretha Franklin on July 29 while promoting her biopic Respect at the Martha's Vineyard Film Festival in Edgartown, Massachusetts.

Mariska Hargitay continues to nurse her broken ankle on July 29 on the New York City set of Law & Order: Special Victims Unit.

Joe Keery hits the Rome, Georgia, set of Stranger Things on July 29.

Kim Petras performs on July 29 as the Lollapalooza music festival kicks off in Chicago.

Hugh Jackman has a leash in each hand as he walks his pups through New York City on July 29.

Prince Charles takes a tour of the newly restored House of the Northern Gate and its gardens during a visit to Thurso, Scotland, on July 29.

Paul McCartney and wife Nancy Shevell color coordinate on July 29 while strolling along the beach in The Hamptons, New York.

Billie Elish attends a celebration for her new album Happier Than Ever sponsored by Spotify in Los Angeles on July 29.

Rita Ora goes colorful on July 29 for the 26th annual L.A. Art Show Opening Night Gala in Los Angeles.

Regina King is seen filming a commercial in L.A. on July 29.

Gwyneth Paltrow hosts the celebration for the launch of a special collaboration with Miami Cocktail Company on July 27.

Kaia Gerber is seen for the first time on the set of American Horror Story in downtown L.A. on July 28.

Chrissy Teigen takes her new basset hound puppy Pearl to visit her office in Santa Monica on July 28.

Illinois House Speaker Pro Tem Jehan Gordon-Booth chats with Chicago-based artists including Polo G, G Herbo, Cole Benett and Vic Mensa at the Invest in US dinner at the Robey rooftop on July 29.

Justin Theroux is spotted walking his dog Kuma in N.Y.C. on July 28.

Jena Malone snaps photos at the premiere of Vertical's Lorelei at Laemmle Royal on July 28 in L.A.

Gina Rodriguez shares a sweet moment with husband Joe Locicero on the set of her new movie Players on July 28 in N.Y.C.

Matthew Rhys enjoys a Talisker tasting on the Shearwater and at Celestine in Brooklyn, New York.

Dwayne Johnson is in great spirits as he heads to the gym on July 28 in L.A.

Naomi Watts does some shopping in the Hamptons on July 27.

Matt James and Tyler Cameron arrive for the You Deserve Better conversation at the 92nd Street Y on July 28 in N.Y.C.

Lady Gaga brings the drama to the streets of N.Y.C. on July 28.

Mary J. Blige films Ghost, the sequel to Power, in N.Y.C. on July 28.

Thomas Rhett performs during CMA Summer Jam at the Ascend Amphitheater on July 28 in Nashville.

Milo Ventimiglia attends Haute Living Celebrates Milo Ventimiglia at the 1 Hotel West Hollywood on July 28 in West Hollywood.

Zachary Quinto walk his dogs in downtown N.Y.C. on July 27.

Gabrielle Union looks stylish in a summery long-sleeve dress in N.Y.C. on July 27.

Nick Viall smooches his adorable dog while out in L.A. on July 27.

Sutton Foster takes center stage at the photocall for the musical Anything Goes on July 28 before the production opens at the Barbican Theatre in London.

Blake Shelton and Gwen Stefani perform during CMA Summer Jam at Ascend Amphitheater on July 27 in Nashville.

Liam Payne arrives at the launch of Dazn x Matchroom at German Gymnasium in King's Cross, London on July 27.

Teyana Taylor is seen on the set of A Thousand and One in Harlem on July 27 in N.Y.C.

Nicky Hilton looks fashionable as she shoots for the cover of Avenue Magazine on July 27.

Karah Preiss and Emma Roberts' Belletrist partners with BookClub at The Whitby Hotel Reading Room in N.Y.C. on July 27.

Gigi Hadid mans the camera during a photoshoot with friends Alana O'Herlihy and Gabriella Karefe-Johnson in Brooklyn, New York on July 27.

Lily James arrives on set to film Pam and Tommy in L.A. on July 27.

Sofía Vergara goes shopping at Saks Fifth Avenue in Beverly Hills on July 27.

Noah Cyrus hits the set of American Horror Story in downtown L.A. on July 26.

Felicity Jones attends the UK premiere of The Last Letter From Your Lover at The Ham Yard Hotel on July 27 in London.

Joaquin Phoenix is spotted in Montreal on the set of Disappointment Blvd. on July 27.

Tyler Cameron snaps photos outside of Good Morning America while promoting his new book, You Deserve Better, in N.Y.C. on July 27.

Lady Gaga rocks sky-high platform heels while out in N.Y.C. on July 26.

JAY-Z goes jogging in a white tee and joggers in the Hamptons on July 26.

Justin and Hailey Bieber are seen out dressed to the nines on July 26 in L.A.

Matt Damon, Abigail Breslin and Tom McCarthy pose at the Stillwater N.Y.C. premiere at Rose Theater in Jazz at Lincoln Center on July 26.

Busta Rhymes and host Rick Ross perform at Vendome in Miami Beach on July 26.

Sarah Paulson, Monica Lewinsky and Beanie Feldstein pose at the special screening of FX's Impeachment: American Crime Story in N.Y.C. on July 26.

Tommy Dorfman and Lucas Hedges attend Cinespia's screening of Josie and the Pussycats held at The Greek Theatre on July 23 in L.A.

Michael Phelps visits the OMEGA Showcasing in Tokyo wearing the Seamaster Diver 300M Tokyo 2020, the brand's tribute to the Olympic Games.

Olivia Wilde is spotted hanging out in L.A. on July 25.

Alessandra Ambrosio cools off in the sea of ​​Florinópolis while enjoying her vacation in Brazil on July 26.

Gina Rodriguez films in N.Y.C. on July 26.

Gabrielle Union pairs a stylish leather Sportmax jacket with a black skirt as she heads out in N.Y.C. on July 25.

Sarah Jessica Parker receives a sweet smooch from Willie Garson on the set of And Just Like That at the Lyceum Theater on July 24 in N.Y.C.

Christie Brinkley attends Kenneth, Maria and Bradley Fishel Celebrate POLO Hamptons with Christie Brinkley at a private residence on July 24 in Bridgehampton, New York.

Bella Hadid hangs out with new boyfriend Marc Kalman in N.Y.C. on July 25.

Normani performs her latest single "Wild Side" at the Tequila Don Julio release party of their limited edition Tequila Don Julio Primavera.

Cara Delevingne poses at the ABB FIA Formula E Heineken London E-Prix at ExCel on July 24 in London.

Jason Momoa is seen leaving Mexican restaurant La Bodega Negra after dinner with a group of friends on July 23 in London.

Post Malone brings the energy during his Rolling Loud set at Hard Rock Stadium on July 25 in Miami Gardens, Florida.

Bethenny Frankel spends time with her friend Dan Wright at Sag Harbor Beach in the Hamptons, New York on July 24.

Vanessa Hudgens and her mom Gina Guangco pose at the Filming Italy Festival at Forte Village Resort on July 24 in Santa Margherita di Pula, Italy.

Deborah Cox performs an electrifying set at HQ2 Nightclub at Ocean Casino Resort in Atlantic City, NJ on Saturday, July 24.

Emily Blunt and Dwayne Johnson arrive in style at the world premiere of Jungle Cruise at Disneyland in Anaheim.

Indya Moore turns heads as they're spotted on the streets of Chelsea in N.Y.C.

Jaden Smith suits up onstage for his Freedom Experience performance at SoFi Stadium in Inglewood.

Cover models Megan Thee Stallion and Leyna Bloom attend the Sports Illustrated Swimsuit Issue cover reveal party in Hollywood, Florida.

Adrian Grenier and Katharine McPhee attend a beach cleanup at Zuma Beach in Malibu.

Camila Cabello performs her new single "Don't Go Yet" on The Tonight Show Starring Jimmy Fallon.

Hilary Duff and husband Matthew Koma enjoy a Disney day at Sleeping Beauty's Castle with Banks, 2, and Luca, 9, in Anaheim.

Heather Graham attends the Filming Italy Festival at Forte Village Resort on July 23 in Santa Margherita di Pula, Italy.

Tyler Cameron and girlfriend Camila Kendra enjoy a lunch date in N.Y.C. on July 22.

Harrison Ford rides his bike through Mayfair on July 23 in London.

A glowing Jennifer Lopez shoots her 2021 Coach campaign, which launches on July 27.

Matt Damon triumphantly arrives at JFK Airport in N.Y.C. on July 22.

Terry Crews poses at the counsellor dinner opening of the One Young World Summit in the Antiquarium of Munich Residenz in Germany on July 22.

Kate Beckinsale wears a summery white dress and gold heels to The Tonight Show Starring Jimmy Fallon on July 22 in N.Y.C.

NE-YO and wife Crystal Renay take daughter Isabella Rose to Disneyland in Anaheim on July 22.

Mindy Kaling makes a guest appearance on Late Night with Seth Meyers on July 22 in N.Y.C.

Jennifer Lopez jet sets out of L.A. for her 52nd birthday celebration with friends on July 22.

Pitbull lights up the stage at Premios Juventud 2021 at Watsco Center on July 22 in Coral Gables, Florida.

Shawn Mendes and Camila Cabello stroll through N.Y.C. on July 22.

Hayley Atwell and Lianne La Havas attend a traditional Omakase dining experience, hosted by Omega, to celebrate the opening of the Olympic Games at Nobu Hotel on July 22 in London.

George Clinton and Snoop Dogg hang at Clinton's 80th birthday party in Los Angeles on Thursday night.

Leighton Meester crushes the waves at the beach in Malibu on July 21.

Elizabeth Olsen attends the Filming Italy Festival at Forte Village Resort on July 22 in Santa Margherita di Pula, Italy.

Kat Graham debuts Galactica, her newest merchandise collection for fans, created by Alessio Filippelli with the message of inclusivity on July 22.

Remy Ma and Gabrielle Union are seen on the set of The Perfect Find in Harlem on July 21.

Margot Robbie greets fans outside of Jimmy Kimmel Live! on July 21 in L.A.

Prince Charles drinks a pint as he and Camilla, Duchess of Cornwall, visit the Duke of York Public House in Devon to join author Sir Michael Morpurgo at a lunch during day three of their visit to Devon and Cornwall on July 21 in Iddesleigh, England.

Nicole Richie, Zooey Deschanel and Katy Perry attend Baby2Baby Back2School, presented by Stitch Fix Kids and Epic, on July 21 in L.A.

Tiffany Haddish performs at The Savoy Entertainment Center in Inglewood, California on July 21.

Adam Lambert and Kat Graham attend VIP Night of The DiscOasis at the South Coast Botanic Garden with Groovemaster Nile Rodgers on July 21 in Palos Verdes Estates, California.

Joaquin Phoenix is spotted filming Disappointment Blvd. in full costume in Montreal, Canada on July 21.