Star Tracks: Cara Delevingne Gets Some Support from Sister Chloe, Plus Charli XCX, David Beckham & More

Amy Schumer gets the crowd laughing before a screening of Patti Cakes in New York City on Monday.

American Ninja Warrior hosts Matt Iseman and Akbar Gbaja-Biamila celebrate their show's Emmy nomination at the Today Show. 

Chelsea Handler and Aisha Taylor are selfie queens as they attend the L.A. premiere of Atomic Blonde on Monday.

Venus Williams attends the 2017 Mylan World TeamTennis Washington Kastles vs. Philadelphia Freedoms match on Monday.

Game of Thrones actor Alfie Allen makes an appearance at the Pepsi Fantasy Food Truck at Fandom Fest in San Diego.

Emily Ratajkowski struts her stuff while out and about in L.A. on Monday.

David Beckham multitasks while stopping to get gas during a day out with son Brooklyn on Monday in Beverly Hills.

Jaden Smith debuts a vibrant 'do as he walks through Calabasas, California.

Charli XCX gets the crowd on their feet while performing at Lollapalooza at the Hippodrome de Longchamp in Paris on Monday.

Riley Keough strikes a pose in between takes on the New York City set of the Untitled Levinson Project on Monday.

Sofia Richie keeps it casual in sweats and a pair of statement sunglasses while out and about with friends in New York on Monday.

Rose Byrne bundles up in a winter coat and a giant scarf while filming scenes for Juliet, Naked in London on Monday.

Cara Delevingne gets some sibling support from sister Chloe at an afterparty following the European premiere of Valerian And The City Of A Thousand Planets on Monday in London.

Halle Berry shows off her toned legs in a white minidress while attending the Kidnap screening in Miami, Florida on Monday.

YouTube star Lilly Singh shows off her best Charlie's Angel pose while walking the red carpet at the L.A. premiere of Atomic Blonde on Monday. 

Sienna Miller attends the press night afterparty for Cat On A Hot Tin Roof in London on Monday.

Kate Bosworth and husband Michael Polish come together at the 2017 Summer TCA Tour National Geographic Party on Monday

Bethenny Frankel greets photographers as she heads to dinner in New York City.

Chris Colfer holds up his children's book, The Land of Stories, while stopping by the Young Hollywood Studio on Monday.

Ansel Elgort is all smiles as he attends a Baby Driver photo call in Brazil on Monday.

Charlize Theron attends the L.A. premiere of Atomic Blonde on Monday.

On Monday, Kidnap's Halle Berry and host Alan Tacher are seen attempting to keep a balloon off the floor during the star's appearance on Despierta América. 

Rob Lowe brings his look-alike sons, Matthew and John, to Extra in N.Y.C. on Monday. 

On Monday, Rihanna graces the London premiere of Valerian And The City of a Thousand Planets in a cherry-red dress. 

A smiling Paula Patton doesn't let bad N.Y.C. weather get her down.

Liam Hemsworth and Rebel Wilson take on the rain as they film Isn't It Romantic in New York City. 

David Tennant raises an eyebrow as he poses next to Scrooge McDuck on Monday in Disneyland.

Cara Delevingne gives her best face as she takes pictures with fans at the London premiere of Valerian and The City of a Thousand Planets on Monday.

Bottoms up, y'all! Amber Rose hosts Foxwoods Resort Casino's Liquid Sundays.

On Sunday, Anna Faris and son Jack Pratt attend the premiere of The Emoji Movie. 

The Justice League cast — Ben Affleck, Ezra Miller, Gal Gadot, Ray Fisher and Jason Momoa — come together for an epic selfie on Saturday.

Chanel Iman and Jaime King cozy up to one another at the Hudson Jeans FYF Fest Style Lounge on Sunday in L.A.

Jared Leto gets animated as his brother, Shannon, sticks to a stoic pose while backstage at Jones Beach Theater on Saturday.

Christue Brinkley poses with her copy of Social Life magazine, which she fronts, on Saturday at the 6th Annual St. Barth Hamptons Gala.

Christina Aguilera, longtime love Matthew Rutler and the singer's kids head to the premiere of The Emoji Movie on Sunday.

Chris Hemsworth and Mark Ruffalo share their love for one another as the pair and costar Tom Hiddleston attend the Thor: Ragnarok Comic-Con panel on Saturday.

Jennifer Lopez and boyfriend Alex Rodriguez are caught in a candid moment while heading to dinner at Miami's Prime 112 restaurant on Sunday.

All eyes are on Rebel Wilson as the Pitch Perfect star announces her clothing line at Nordstrom in Seattle on Saturday.

Friends forever! The Stranger Things cast — Finn Wolfhard, Caleb McLaughlin and Gaten Matarazzo — are all smiles as they attend SiriusXM's Entertainment Weekly's show on Saturday.

Like father, like son! Sting and son Joe Sumner perform on stage during the Thurn & Taxis Castle Festival on Saturday.

Costars Dane DeHaan and Cara Delevingne attend the London photocall for Valerian and The City of a Thousand Planets on Monday. 

Katie Holmes enjoys her Sunday out in New York City. 

Stephen Moyer and Jamie Chung hang at The Gifted Comic-Con afterparty on Friday in San Diego. 

Olivia Munn lands at the Vancouver airport in cutoff shorts and thigh-high boots. 

Nev Shulman and Laura Perlongo ride the waves in East Hampton following their Saturday nuptials. 

Demi Lovato steps out of her New York City hotel. 

Karlie Kloss is spotted working on set Sunday in N.Y.C. 

Scott Eastwood heads out of the Miami Beach waters. 

Joe Manganiello and wife Sofia Vergara snack on ice cream cones in New York City. 

Nina Dobrev carries her dog in New York City on Sunday.

(From left) Molly Sims, daughter Scarlett May Stuber and husband Scott Stuber attend the 3rd annual Green Beetz Day at The Creeks in East Hampton, New York.

Lupita Nyong'o and Ryan Coogler pose for a photo at Entertainment Weekly's annual Comic-Con party at Hard Rock Hotel San Diego on Saturday.

Jared Leto hit the streets of the Lower East Side in Manhattan, New York, on Saturday.

John Legend and Chrissy Teigen look on during the Tennis Hall of Fame induction ceremonies at the International Tennis Hall of Fame in Newport, Rhode Island, on Saturday.

Charlize Theron (center) attends the Atomic Blonde San Diego Comic-Con Fan Screening on Saturday.

On Saturday, Joe Biden and Amy Schumer pose backstage at the hit musical Dear Evan Hansen on Broadway at The Music Box Theatre.

Ryan Gosling (left) and Harrison Ford had a laugh at the Warner Bros. Pictures' Blade Runner 2049 presentation during Comic-Con International 2017 on Saturday in San Diego, California.

Missy Elliott performed at FYF Festival on Friday in Los Angeles, California.

Miles Teller and girlfriend Keleigh Sperry were spotted getting dinner at Craig's in Los Angeles on Friday.

(From left) Dave Franco, Kumail Nanjiani, Abbi Jacobson, Justin Theroux, Michael Pena, Olivia Munn and Zach Woods attend MT Fandom Fest at PETCO Park on Friday in San Diego, California.

James Van Der Beek DJs on the VICELAND bus at Comic-Con in San Diego, California, on Friday.

Celine Dion wears another super-chic outfit during a day out in Paris on Friday.

Zedd feels the music while performing on Good Morning America on Friday.

Troian Bellisario gets pumped up for her appearance on BUILD, where she discussed her new movie, Feed.

Sarah Jessica Parker takes a seat on the N.Y.C. set of her romantic drama, Best Day of My Life.

Kyra Sedgwick and Ryann Shane reunite at BUILD to discuss the new Lifetime movie, Story of a Girl, on Friday.

Princess Kate gives daughter Princess Charlotte a lift while the pair depart from Hamburg Airport on the last day of the royal family's official visit to Poland and Germany.

Alessandra Am