Build a Better You with These Celeb-Approved Health and Fitness Books
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Heidi Klum's doppelganger looks on as the model snaps a selfie with Questlove at her 17th annual Svedka-sponsored Halloween party in New York City on Monday.
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Formula One racer Lewis Hamilton, Daily Show host Trevor Noah and his girlfriend, singer Jordyn Taylor, go all-out for Klum's Halloween party.
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Jay Pharoah reaches new heights at Heidi Klum's Halloween party on Monday night in NYC.
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VAMP IT UP
Award winner Emma Watson has a bold bat vibe on Halloween at the Harper's Bazaar Women of the Year Awards in London on Monday.
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AND THE AWARD GOES TO ...
Also at the Women of the Year Awards, actress Felicity Jones, who poses with her prize at the London event.
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Zachary Quinto and partner Miles McMillan walk to a yoga class in N.Y.C. on Monday.
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Lady Gaga carries a perfect pink bouquet on Wednesday through Narita International Airport in Japan, where she's promoting her new album, Joanne.
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Dressed in her Cub Scout garb, Gigi Hadid steps out for Taylor Swift's Halloween get-together in N.Y.C. on Monday.
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BACK IN TIME
Michael J. Fox toys with the idea of time traveling on Friday at Universal Orlando Resort in Florida, where he poses in front of that legendary DeLorean from Back to the Future.
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BRIGHT & EARLY
Benedict Cumberbatch gives a wave on Monday as he arrives at Good Morning America in N.Y.C.
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ROCK OF AGES
Johnny Depp and Alice Cooper of Hollywood Vampires play a Halloween set during a visit to Jimmy Kimmel Live on Monday night in L.A.
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Elsa Pataky looks race-ready for a day at the track in Melbourne, Australia, on Monday.
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WALK IT OUT
Dakota Fanning listens to music during a Monday walk around N.Y.C.
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Julianne Moore gives off major '50s vibes while filming Suburbicon alongside Matt Damon and George Clooney in L.A. on Monday.
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MAD FOR PLAID
No Doubt about it, Gwen Stefani looks amazing, stunning in a plaid ensemble on stage in Irvine, California, on Sunday.
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Paul Rudd sports the jersey of his beloved Kansas City Royals on a trick-or-treat trek around New York City on Halloween.
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Gwyneth Paltrow and Jessica Seinfeld aren't going to let a little rain spoil their Sunday! The stars (and hostesses) smile outside the GOOD+ Foundation Halloween Bash in Hollywood.
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Best co-workers ever? Walking Dead actors Melissa McBride and Lennie James gift AMC staff members batches of cookies as a Halloween treat in N.Y.C. on Monday.
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DEVIL IN THE DETAILS
Charli XCX embraces her bad side for a night at the 'After the After Party' Halloween bash in London on Monday.
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START YOUR ENGINES
Dancing with the Stars contestants Terra Jolé and James Hinchcliffe arrive to practice in style in L.A. on Friday.
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Gabrielle Union stuns as she arrives at an AOL Build event in N.Y.C.
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GLAM IN GREEN
Keira Knightley is a vision in emerald green as she arrives at Harper's Bazaar Women of the Year Awards on Monday in London.
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LONG HAIR, DON'T CARE
Charli XCX looks back at photographers as she heads to BBC Radio 1 studios in London.
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CATCH 'EM ALL
Guest host Jerry O'Connell and Kelly Ripa team up in Pokémon-themed costumes for Monday's Live With Kelly! in N.Y.C.
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THAT'S A WRAP!
Heidi Klum stays warm in an oversized red scarf after arriving at JFK airport in Queens, New York.
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LADY IN RED
On Sunday, Kelly Rohrback dons a red bathing suit on the L.A. set of Baywatch.
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THERE WILL BE BLOOD
Round of applause! Liev Schreiber and costar Janet McTeer take a bow at the end of their Broadway opening night performance of Les Liaisons Dangereuses on Sunday.
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Kate Upton and her fiancé, MLB player Justin Verlander, attend the 2016 LACMA Art + Film Gala on Saturday in L.A.
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GETTING AN EARFUL
Laughs all around! Kristen Schaal dresses up as her Bob's Burgers character during a panel discussion at Popfest in L.A.
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ALL DRESSED UP
Maria Sharapova opts for a red wig and overalls while attending the JustJared Halloween Party on Sunday in L.A.
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The Americans' real-life married duo Matthew Rhys and Keri Russell pose together at an event for their show at N.Y.C.'s 92Y on Sunday.
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While promoting his new film, Trolls, Justin Timberlake shows off his silly side on Sprout's preschool morning show Sunny Side Up.
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Katharine McPhee works on her fitness with a friend in L.A. on Saturday.
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James Van Der Beek, wife Kimberly and their kids — Annabel, 2 ½, Olivia, 6 and Joshua, 4 — dress up for the GOOD + Foundation's Halloween Bash Sunday in Hollywood.
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A denim jumpsuit-clad Bella Hadid makes the N.Y.C. streets her runway.
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OWN THE NIGHT
Emily Ratajkowski dons a sleek costume at Bacardi x Kenzo Digital's "We Are the Night" Halloween Party on Saturday in N.Y.C.
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POP OF COLOR
Eddie Redmayne shows off his vibrant sense of style while attending Entertainment Weekly's Popfest on Sunday in L.A.
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Chris Pratt goes on a grocery run in L.A. on Sunday.
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Joined by her pup Pippi, Jennifer Lawrence is spotted making her way through LAX airport on Friday.
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Sarah Michelle Gellar (left) and Selma Blair linked up at Gilt & Foodstirs Celebrate Exclusive Cupcake Kit in Los Angeles on Friday.
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Demi Moore (left) and Salma Hayek walked the carpet at the LACMA Art and Film Gala in Los Angeles on Saturday.
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THE SIMPLE LIFE
Sofia Richie (left) and Paris Hilton attend Trick or treats! - The 6th Annual treats! Magazine Halloween Party Sponsored by Absolut Elyx in Los Angeles on Saturday.
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'BOUT TO GET DIRRTY
Tyga and Kylie Jenner dropped by Bootsy Bellow's Halloween party in Los Angeles on Saturday.
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LET'S GET LOUD
Jennifer Lopez gets loud for Hillary Clinton at Get Out The Vote concert in Miami on Saturday.
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LADY IN BLACK
Nicki Minaj attended the 2016 Fashion Group International: Night of Stars at Cipriani Wall Street on Thursday.
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(From left) Stacy Keibler, Emmanuelle Chriqui and Jenna Dewan Tatum attend the Casamigos Halloween Party in Los Angeles on Friday.
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WHAT A DRAG
Marco Jacobs and Bette Midler got into character at the 2016 Hulaween Bash at The Waldorf-Astoria in New York City on Friday.
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OUT OF THIS WORLD
James Corden and wife Julia Carey arrived at Kate Hudson's Halloween party in Los Angeles on Friday.
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RUN THE WORLD
Priyanka Chopra goes for a jog while filming scenes for Quantico in N.Y.C.
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Donning an oversized coat, Rihanna is spotted at JFK airport in Queens, New York on Friday.
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JUST KEEP SINGING
Usher performs at Power 105.1's Powerhouse 2016 show at Brooklyn, New York's Barclays Center on Thursday.
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COOL GIRL STYLE
Kate Bosworth steps out wearing a monogrammed moto jacket in N.Y.C.
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CAST OF CHARACTERS
Sebastian Arcelus, wife Stephanie J Block, Patricia Clarkson and Andrew Rannells pose together at the opening night afterparty for Falsettos on Broadway in N.Y.C.
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ON A ROLL
Adam DeVine rides his bike around the Santa Monica, California set of his upcoming film, Game Over, Man, on Thursday.
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Gisele Bündchen lets her hair out at the Pantene Institute launch event on Thursday in Mexico City, Mexico.
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SING YOUR HEART OUT
Bruce Willis hits a high note during his performance onstage at the 15th Annual "A Great Night in Harlem" Gala at The Apollo Theater in N.Y.C. on Thursday.
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LET ME TAKE A SELFIE
Jon Hamm and designer Kenneth Cole stop for a quick selfie break as they attend amfAR's Inspiration Gala on Thursday in Hollywood.
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SEALED WITH A KISS
Onstage, performers Cheyenne Jackson and Jane Lynch top off their big number with a passionate kiss.
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Charli XCX opts for a sexy devil costume while performing at the Kiss FM Haunted House Party on Thursday in London.
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Anne Hathaway is flanked by President and CEO of the U.S. Fund for UNICEF Caryl M. Stern and her husband Adam Schulman as they attend the World of Children Awards Ceremony on Thursday in N.Y.C.
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Coco Rocha holds her stare like the pro she is while attending Brad Walsh's release party for his new album, Six Infinite, on Thursday in N.Y.C.
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LAUGH ABOUT IT
Emma Stone gets caught in a giggle fit as she makes her way through L.A. on Thursday.
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Karlie Kloss is as cool as can be as she preps for a flight at LAX airport.
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Michael Polish and Kate Bosworth strike a pose as they attend the Launch of Idole de Christofle, the brand's first gold and diamond jewelry collection, in N.Y.C. on Thursday.
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Mosh pit queen! Lady Gaga surprises fans with a performance while on the Bud Light x Lady Gaga Dive Bar Tour on Thursday in L.A.
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LOTS OF LAUGHS
Madonna and Mert Alas are the epitome of happy as they attend Edward Enninful's OBE dinner on Thursday in London.
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The ever-flawless Nicki Minaj attends Fashion Group International's 2016 Night of Stars on Thursday in N.Y.C.
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DOG DAY AFTERNOON
Rachel Leigh Cook enlists her furry buddies to help her run errands.
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FOR THE LOVE OF FASHION
Sarah Hyland, TV personality Chris Hardwick and wife Lydia Hearst make serious style statements at a Vanity Fair and Burberry event on Thursday in L.A.
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Orange Is the New Black costars Selenis Leyva and Taryn Manning stop for a mini-reunion as they walk the red carpet at the DKMS 2016 Blood Ball on Thursday in N.Y.C.
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Colin Firth is all smiles as he heads to Sapienza University in Rome, Italy to support the Italian film, In Bici Senza Sella.
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COUPLE'S NIGHT OUT
Downton Abbey's Joanne Froggatt and husband James Cannon attend the U.K. premiere of Starfish in London on Thursday.
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MEET YOUR NEEDS
On Thursday in London, Michael Sheen attends "BIFA Meets" in association with Time Out.
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ON THE MOVE
Spotted: Naomi Watts leaves her N.Y.C. apartment on Thursday morning as she heads to a film set for her latest project.
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June Ambrose shines in a chic look at the 2016 Breast Cancer Research Foundation Award Luncheon Thursday in N.Y.C.
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Actor Daniel Sunjata stops by the Extra studios in N.Y.C. on Thursday.
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PEACE OF ME
Sharon Stone spreads the love while out in L.A. on Wednesday.
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Sofia Vergara and Ed O'Neil sport coordinating holiday sweaters while filming scenes for Modern Family in L.A. on Wednesday.
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BURST OF COLOR
Lupita Nyong'o dons a floral-print dress at the N.Y.C. premiere of Loving on Wednesday.
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PENCIL ME IN
Michael Strahan takes a selfie with Lil Jon during Wednesday's Pencils of Promise Gala in N.Y.C.
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ALL YOU NEED IS LOVING
Costars Joel Edgerton and Ruth Negga pose at the N.Y.C. premiere of Loving on Wednesday.
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WHAT AN HONOR
On behalf of Weight Watchers International, Oprah Winfrey accepts the Corporate Award, designed by Chopard, at the 2016 Gala Against Hunger in N.Y.C.
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CHIC & COZY
Jessica Simpson goes for style and comfort as makes her way through N.Y.C. In a fur-lined jacket and black pants.
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