Star Tracks: Kourtney Kardashian Returns to Paris with Boyfriend Younes, Plus Kate Winslet, Jessica Alba & More
Joe Jonas and Cole Whittle of DNCE take a breather during Airbnb's New York City Experience launch event on Tuesday.
Prince Harry high fives Laura Mastel and Gabby Graves-Wake at the Cycling event during the 2017 Invictus Games.
Kiefer Sutherland looks dapper as ever in New York City on Tuesday.
The cast of Will & Grace — Eric McCormack, Megan Mullally, Debra Messing and Sean Hayes — are one big happy group as they attend the Tribeca TV Festival.
A suit-clad Melissa McCarthy films scenes for The Happytime Murders in Santa Monica, California.
On Tuesday, Gigi Hadid presents her TommyXGigi Collection during the #TogetherTour event in Barcelona, Spain on Tuesday.
JUST LIKE THE MOVIES
Prince William, producer Katie Hall and Lionel Road Primary School students attend the world premiere of the BBC's Blue Planet II in London.
Kate Hudson tops off her buzz cut with ahat at the Fabletics at Del Amo Fashion Center on Tuesday.
ALL YOU CAN EAT
Arnold Schwarzenegger treats himself to a pretzel and beer while celebrating Oktoberfest at Schuetzen Festzelt in Munic, Germany on Tuesday.
WOMAN IN BLACK
Sofia Vergara is all smiles as she leaves a taping of The Late Show with Stephen Colbert on Tuesday in New York City.
YouTube celebrities Grace Helbig, Mamrie Hart and Hannah Hart ham it up for the cameras during the 2017 Streamy Awards on Tuesday in Beverly Hills.
Vin Diesel enjoys a sweet moment with his mother, Delora Vincent, while walking the red carpet at the Hollywood premiere of HBO's Spielberg on Tuesday.
Meanwhile, inside the event, newlyweds Jamie Bella and Kate Mara cuddle up to one another during the premiere.
RED-Y OR NOT
Kelly Rutherford cracks up after her puppy attempts to steal a sip of her drink as the pair enjoy a stroll in Beverly Hills on Tuesday.
Ever the trendsetter, Bella Hadid rocks a crop top and a high-fashion pair of ripped jeans while out to dinner with friend Fanny Bourdette-Donon in Paris on Tuesday.
SORRY MISS JACKSON
Janet Jackson takes control of the crowd as she performs at the Vancouver, Canada stop of her world tour on Tuesday at Rogers Arena.
Shortly after the news of her sisters Kylie and Khloé's pregnancies broke, mom-to-be Kim Kardashian West stepped out in Beverly Hills in her signature crop top and leggings on Tuesday.
PEACE AND LOVE
Milo Ventimiglia strikes a pose as he arrives at the season 2 premiere of NBC's This Is Us on Tuesday in L.A.
Kourtney Kardashian and boyfriend Younes Bendjima are spotted together in Paris on Tuesday.
Elle Fanning is as happy as can be while she and costar Timothee Chalamet walk on the N.Y.C. set of Woody Allen's untitled film project.
Arnold Schwarzenegger takes the lead as the conductor of an orchestra at the Schuetzen-Festzelt Oktoberfest in Munich, Germany.
An expectant Jessica Alba takes the stage at an Advertising Week panel event on Tuesday.
WORK OF ART
John Leguizamo makes a good point as he unveils his Frida Kahlo-inspired Broadway marquee for his new solo show, Latin History for Morons, on Tuesday.
DO THE WAVE
Kate Winslet beams as she greets fans while en route to Good Morning America on Tuesday.
FULL OF PRIDE
Prince Harry shows his love for America while attending the Cycling competition on day 4 of the Invictus Games in Toronto on Tuesday.
LIKE MOTHER, LIKE SON
A killer sense of style runs in the family! On Tuesday, Robin Wright and son Hopper Jack Penn arrive at the Saint Laurent show as part of the Paris Fashion Week.
FRONT ROW FAVORITE
Naomi Watts is a sartorial superstar while attending the Christian Dior show during Paris Fashion Week.
TIME TO TALK
Liev Schreiber stops by Sway in the Morning on Tuesday in New York City.
Elle Fanning heads back home after filming scenes for Woody Allen's upcoming project in N.Y.C.
Craig Robinson and Amber Stevens West strike a pose at the FOX Fall Party on Monday.
The Brave costars Anne Heche and Mike Vogel reunite at the Boston Film Festival.
TO THE RESCUE!
Jenny Mollen, Jason Biggs and their son Sid go shopping for Power Rangers Halloween costumes at Target on Sunday.
Ariana Grande busts a move with fans at a Reebok event (she's the new brand ambassador) in Hong Kong.
LADY OF THE HOUR
On Monday, Alicia Vikander attends the CDLP Crayfish Party at London's Mark's Club.
ON THE AIR
Hillary Clinton joins SiriusXm Studios for a town hall event on Monday.
Fergie is in good spirits as she promotes her new album on Radio Andy on Monday.
POP OF COLOR
Emily Ratajkowski is back in black while attending the Jacquemus show as part of the Paris Fashion Week on Monday.
Jesse Tyler Ferguson attends the opening night of the 2017 Metropolitan Opera on Monday.
Kelly Rutherford enjoys a day out with her dog in L.A.
KEEPING IT FANCY
Jemima Kirke and F. Murray Abraham dress to impress at the Metropolitan Opera Opening Night Gala on Monday.
READY FOR FALL
Time to celebrate! January Jones and Will Forte attend the FOX Fall Party at Catch L.A. on Monday.
Priyanka Chopra is a stylish jet-setter as she makes her way through LAX Airport.
FRONT AND CENTER
Uma Thurman celebrates her DuJour magazine cover at N.Y.C.'s at Magic Hour Lounge.
TONIGHT'S THE NIGHT
Madonna gets up close and personal with Tonight Show host Jimmy Fallon on Monday.
Pierce Brosnan and wife Keely Shaye Smith (not pictured) head to the Metropolitan Museum of Art in New York City.
All smiles! Sienna Miller leaves London's Apollo Theatre after a performance on Monday.
DANCING THE NIGHT AWAY
Nick Lachey and Dancing with the Stars partner Peta Murgatroyd show off their skills ahead of Monday night's performance in L.A.
This Is Us star Milo Ventimiglia keeps the peace as he plays host at the We Are Timex event on Monday.
Zooey Deschanel and an adorably baby attend the Baby2Baby and Huggies No Baby Unhugged donation event on Monday.
L.A. STATE OF MIND
Terry Crews is the ultimate hype man at the FOX Fall Party at Catch L.A. on Monday.
Prince Harry and girlfriend Meghan Markle sport sunglasses as they take in the 2017 Invictus Games on Monday.
OFF TO WORK
Selena Gomez is a sartorial superstar as she heads to the New York City set of Woody Allen's newest film project.
CRAZY FOR COLOR
Devon Aoki and Karlie Kloss hang backstage at the Jeremy Scott show during New York Fashion Week.
WHERE THERE'S A WILL…
Will & Grace stars Megan Mullally, Debra Messing, Eric McCormack and Sean Hayes dish on the series reboot at SiriusXM in New York City on Monday.
LONG HAIR, DON'T CARE
All eyes are on Jared Leto (and his long mane!) as he takes a stroll through Brazil.
Eva Longoria is spotted out in a green dress Monday in Beverly Hills.
Rob Lowe and sons Matthew and John enjoy a night out at the iHeartRadio Music Festival Friday in Las Vegas.
UnREAL costars Constance Zimmer and Shiri Appleby soak up the Miami Beach sun on Wednesday.
WHEN IN MUNICH
Kevin Spacey gets in on the Oktoberfest celebrations in Munich Saturday.
READY TO COMMIT
On Saturday in Santa Monica, Natalie Portman accepts the Ongoing Commitment Awards at the Environmental Media Association Awards.
SHORTS & SWEET
Wearing red carpet-ready shorts, Olivia Munn poses at the Laura Basci and de Sede Los Angeles showroom opening on Saturday.
PICKING UP THE PRIZE
Andrew Garfield accepts the Best International Designer award on behalf of Tom Ford Sunday at the Green Carpet Fashion Awards in Milan.
ON THE DAILY
Teen Vogue editor-in-chief Elaine Welteroth and Trevor Noah attend a Daily Show event during the Tribeca TV Festival in New York City on Sunday.
SIDE TO SIDE
Ariana Grande works the stage on Sunday at A Concert for Charlottesville.
SONG TO SING
Also at the Charlottesville concert: Justin Timberlake plays the guitar and sings in the spotlight.
WHY SO BLUE?
On Sunday, Eva Longoria strikes a pose while attending Padres Contra El Cancer's 17th Annual "El Sueño De Esperanza" Celebration.