Celeb Spotter 100: Stars touch down for the 2019 Cannes Film Festival

The most glamorous week of the year is here!

Ahead of the 2019 Cannes Film Festival, stars like Julianne Moore, Chloe Sevigny and Amber Heard touched down in Nice, France for a week of high-profile film premieres, chic red carpet moments and star-studded parties.

Back in the States, Gabrielle Union, Paris Hilton and Mandy Moore were photographed out and about in New York City, while British singer James Bay performed during the latest Artists Den show at the newly reopened Webster Hall downtown.

Meanwhile friendly exes Ben Affleck and Jennifer Garner grabbed coffee together to start the week.

Check back here for an updating roundup of the best celebrity sightings of the week:

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Celeb Spotter 100: Celebs arrive in Nice for Cannes Film Festival 2019
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Celeb Spotter 100: Celebs arrive in Nice for Cannes Film Festival 2019

Bella Hadid was all smiles leaving a Dior dinner party in a chic ensemble during the 2019 Cannes Film Festival on Wednesday night.

(Photo by Pierre Suu/GC Images)

Johnny Galecki and girlfriend Alaina Meyer attended the Statue Of Liberty Museum Opening Celebration on Wednesday in New York City.

(Photo by Kevin Mazur/Getty Images for Statue Of Liberty-Ellis Island Foundation)

Gabrielle Union was snapped walking into a screening of "L.A.'s Finest" at The Wing in SoHo on Monday.

(Photo by Gotham/GC Images)

Kaley Cuoco took a moment to thank fans who greeted her outside of Stephen Colbert's "Late Show" studio in New York City on Thursday.

(Photo by Patricia Schlein/Star Max/GC Images)

Jessica Alba was photographed leaving the BUILD Series studio in downtown New York City on Tuesday.

(Photo by Gotham/GC Images)

Selena Gomez donned a chic white mini dress during the 72nd annual Cannes Film Festival on Tuesday night.

(Photo by Arnold Jerocki/GC Images)

Sisters Kendall Jenner, Kourtney Kardashian and Khloe Kardashian attended the NBC Upfronts at Radio City Music Hall on Monday in New York City to promote their E! show, "Keeping Up With the Kardashians."

(Photo by: Heidi Gutman/NBCUniversal)

Elle Fanning was all smiles while walking along the Croisette during the 72nd annual Cannes Film Festival on Tuesday.

(Photo by Arnold Jerocki/GC Images)

Nick Jonas and Priyanka Chopra stepped out hand-in-hand during the 2019 Cannes Film Festival on Friday.

(Photo by Iconic/GC Images)

Paris Hilton was photographed leaving the BUILD Series studio in New York City on Wednesday.

(Photo by BG024/Bauer-Griffin/GC Images)

Oprah Winfrey delivered the keynote address at the opening of the Statue Of Liberty Museum on Wednesday night on Ellis Island in New York City.

(Photo by Jemal Countess/Getty Images for Statue Of Liberty-Ellis Island Foundation)

Ashley Benson went incognito during an outing in Los Angeles on Thursday.

(Photo by PG/Bauer-Griffin/GC Images)

Penelope Cruz glammed it up for an event during the 2019 Cannes Film Festival on Friday.

(Photo by Gareth Cattermole/GC Images)

Yara Shahidi stepped out in multiple shades of pink during her press tour in NYC on Wednesday.

(Photo by Gotham/GC Images)

Scott Disick and Sofia Richie looked chic during an outing at Barneys New York in Los Angeles on Wednesday.

(Photo by BG002/Bauer-Griffin/GC Images)

Mandy Moore attended the NBC Upfronts event at Radio City Music Hall on Monday.

(Gotham via Getty Images)

Friendly exes Jennifer Garner and Ben Affleck were spotted walking around their neighborhood in Los Angeles with their morning coffee on Monday.

(Photo by BG004/Bauer-Griffin/GC Images)

Kendall Jenner was photographed leaving the Hotel Georges V in Paris late on Tuesday night.

(Photo by Laurent Viteur/GC Images)

Evan Ross and Ashlee Simpson attended CINEMOI Network's Annual Gala at the 2019 Cannes Film Festival benefiting Children United Nations on Thursday night.

(Photo by David M. Benett/Dave Benett/Getty Images for Cinemoi)

"The Dead Don't Die" stars Bill Murray, Chloe Sevigny and Tilda Swinton stopped by the HFPA Lounge at the Nikki Beach pop up during the Cannes Film Festival. (Credit: HFPA)

"Bachelorette" star Hannah Brown stopped by "Good Morning America" on Thursday morning in New York City.

(Photo by Raymond Hall/GC Images)

Monica Lewinsky made a rare red carpet appearance at the 23rd Annual Webby Awards in New York City on Monday night.

(Photo by Noam Galai/Getty Images for Webby Awards)

Sterling K. Brown, Emily V. Gordon, Kumail Nanjiani, Elizabeth Banks and Daniel Kaluuya attended a private dinner hosted by Audi and David Chang at Majordomo in celebration of the Audi e-tron in Los Angeles on Friday.

(Photo by Stefanie Keenan/Getty Images for Audi of America)

Gabrielle Union was seen out and about doing promo in New York City on Monday.

(Photo by MediaPunch/Bauer-Griffin/GC Images)

Reese Witherspoon hosted the Elizabeth Arden Garden Party at a private residence in Beverly Hills on Wednesday. (Photo by Stefanie Keenan/Getty Images for Elizabeth Arden)

Jake Owen was photographed before his exclusive performance for Hilton Honors members at The Rustic in Houston, Texas, on Thursday night.

(Photo by Koury Angelo/Getty Images for Hilton)

Vanessa Hudgens was photographed leaving a workout with Propel Vitamin Boost following a launch event for the new fitness electrolyte water in Union Square, New York City on Monday. (Michael/startraksphoto.com)
E! News personality Zanna Roberts Rassi and Drew Barrymore attended the American Express x WeWork Business Platinum Event in New York City on Wednesday night, where Barrymore discussed her FLOWER Brands business. (Credit: Whitney Shulman)

Rita Ora and British Vogue editor Edward Enninful left Annabel's Quiz Night arm-in-arm on Monday night.

(Photo by Ricky Vigil/GC Images)

Paris Hilton struck a pose outside of the "Good Morning America" studio as two men held up umbrellas for her in New York City on Monday morning.

(Photo by Jackson Lee/GC Images)

Eva Longoria was all smiles during an appearance for L'Oreal during the 2019 Cannes Film Festival on Thursday.

(Photo by Arnold Jerocki/GC Images)

Natalie Portman was photographed running errands in Los Angeles on Sunday afternoon.

(Photo by BG010/Bauer-Griffin/GC Images)

Amber Heard touched down in Nice, France for the 72nd annual Cannes Film Festival on Monday.

(Photo by Marc Piasecki/GC Images)

Maria Menounos showed off her newly-dyed red hair while leaving dinner at Craig's in West Hollywood on Monday night.

(Photo by gotpap/Bauer-Griffin/GC Images)

Jessie James Decker helped Smirnoff launch its new Smirnoff Zero Sugar Infusions at the Smirnoff Zero Sugarland event in New York City on Wednesday.

(Photo by Daniel Zuchnik/Getty Images for Smirnoff Vodka)

Jessica Alba was photographed walking into The Wing for a screening of "L.A.'s Finest" in New York City on Monday.

(Photo by Gotham/GC Images)

Kathy Griffin and Roxane Gay hosted a conversation at the Playboy Playhouse pop-up in Los Angeles on Saturday.

(Photo by John Sciulli/Getty Images for Playboy Playhouse )

Naomi Watts attended the opening of Tod's Library Boutique at Hudson Yards in New York City on Friday. (Credit: BFA)

Chrissy Teigen paired a black spandex ensemble with a checked blazer during an event in New York City on Monday.

(Photo by JNI/Star Max/GC Images)

Amber Heard was photographed leaving the Martinez hotel during the 2019 Cannes Film Festival on Thursday.

(Photo by Arnold Jerocki/GC Images)

Tamera Mowry-Housley stopped by the Blue Bunny ice cream pop-up in New York City on Thursday, to help America #GiveInToTheBunny. (Photo by Diane Bondareff/Invision for Blue Bunny/AP Images)

Jessica Alba was all smiles heading into the "Good Morning America" studio in Times Square on Monday.

(Photo by Jackson Lee/GC Images)

Johnny Galecki was photographed walking into the "Late Show" studio in Midtown, Manhattan on Thursday.

(Photo by MediaPunch/Bauer-Griffin/GC Images)

Liam Payne was photographed leaving Annabel's in London on Monday night.

(Photo by Ricky Vigil/GC Images)

Model Alessandra Ambrosio was photographed on the streets of Cannes during the 72nd annual Cannes Film Festival on Tuesday.

(Photo by Timur Emek/GC Images)

James Bay performed during a secret concert event, James Bay: Live from the Artists Den, the first in the 2019 Spring Series, at the newly-reopened Webster Hall in New York City on Sunday night.

"Glee" star Matthew Morrison stopped by SoHo (and ate hors d'oeuvres by The Culinistas) for the Jetblack Summer Shopping Spree.

(Credit: Bennett Raglin via Getty Images)

Yara Shahidi stepped out in SoHo during her "The Sun Is Also A Star" press tour on Wednesday.

(Photo by Gotham/GC Images)

Julianne Moore landed at the Nice airport on Monday ahead of the 72nd annual Cannes Film Festival.

(Photo by Marc Piasecki/GC Images)

Jaime King attends the Hanky Panky celebration of the new campaign #HankyPankyCanBe at Fleur Room at Moxy Hotel.

(Photo by Nicholas Hunt/Getty Images for Hanky Panky)

Sting was spotted leaving BBC Radio 2 on Friday in London.

(Photo by Neil Mockford/GC Images)

Jessica Alba is downtown chic out and about in NYC wearing the Helena sunnies by LAPIMA.

(Photo by Gotham/GC Images)

Gabrielle Union struck a pose in Midtown, Manhattan during a rainy Monday press tour.

(Photo by Gotham/GC Images)

Pierce Brosnan was photographed leaving a meeting in Los Angeles on Thursday.

(Photo by BG002/Bauer-Griffin/GC Images)

Chloe Sevigny looked effortlessly chic leaving the Nice airport after landing for the 72nd annual Cannes Film Festival on Monday.

(Photo by Marc Piasecki/GC Images)

Bella Hadid was spotted on a balcony during the 72nd annual Cannes Film Festival on Friday.

(Photo by Pool/Getty Images)

Priyanka Chopra rocked a sparkling gown with a thigh-high slit for an appearance during the Cannes Film Festival on Thursday.

(Photo by Iconic/GC Images)

Allison Williams made a rare appearance on Wednesday for "Jimmy Kimmel Live" in Los Angeles.

(Photo by BG017/Bauer-Griffin/GC Images)

Julianne Hough made quite the fashion statement with her ensemble for an event in New York City on Monday.

(Photo by JNI/Star Max/GC Images)

Gabrielle Union stepped out in a spring-ready ensemble in New York City on Tuesday morning.

(Photo by Raymond Hall/GC Images)

Jason Schwartzman was spotted out and about in Los Angeles on Sunday.

(Photo by gotpap/Bauer-Griffin/GC Images)

Gabrielle Union was photographed walking into another press stop in New York City on Thursday evening.

(Photo by Robert Kamau/GC Images)

Elle Fanning looked glamorous heading to an event during the 72nd annual Cannes Film Festival in France on Tuesday.

(Photo by Jacopo Raule/GC Images)

"Hot Felon" Jeremy Meeks was photographed out and about during the 72nd annual Cannes Film Festival on Tuesday.

(Photo by Jacopo Raule/GC Images)

Ezra Koenig of Vampire Weekend was photographed grabbing coffee in Los Angeles on Monday.

(Photo by gotpap/Bauer-Griffin/GC Images)

Jonah Hill donned an all-black ensemble while out and about in Los Angeles on Monday.

(Photo by gotpap/Bauer-Griffin/GC Images)

Mariska Hargitay was photographed attending an event in the rain in NYC on Monday.

(Photo by Raymond Hall/GC Images)

Gabrielle Union was photographed out and about in SoHo on Tuesday.

(Photo by Gotham/GC Images)

Rita Ora stepped out during the Cannes Film Festival on Thursday.

(Photo by Arnold Jerocki/GC Images)

Miron Crosby celebrated their 2nd Anniversary with a private dinner hosted by Elizabeth Chambers Hammer. (PC: Snap The Picture)

Trevor Noah waved to photographers while walking on the "Jimmy Kimmel Live!" lot in Los Angeles on Thursday.

(Photo by RB/Bauer-Griffin/GC Images)

Sara and Erin Foster step out in NYC to unveil Margarita Monday with Cointreau X Bumble. Photo Credit: Patrick Lewis/Starpix

Jasmine Tookes stepped out in West Hollywood over the week looking chic as ever in a CAMILLA AND MARC blazer, Nobody Denim Jeans and Dear Frances combat boots! 

Angela Simmons steps out to celebrate KROST's Second Semester Collection. (Photo Credit: Griff Lipson)
Hilaria Baldwin and My 1st Years host traditional English tea party at the Crosby Street Hotel in NYC.
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