Can't-Miss Celebrity Pics!

Victoria Beckham spoke with zeal about HIV and AIDS while visiting the United Nations in NYC on Thursday. "I recently visited South Africa and was so touched by the women I met. I felt inspired and I came home and knew I had to do something," she said. Victoria is now the UNAIDS International Goodwill Ambassador.

Chris Pratt looked dashing in a suit on The Tonight Show Starring Jimmy Fallon on Thursday.

Kendall Jenner gave her best duck-face pose while holding hands with pal Karlie Kloss at the Balmain afterparty during Paris Fashion Week on Thursday.

Samuel L. Jackson and Nicole Scherzinger stole the spotlight at the #SingOne4TheBoys Karaoke Night at the famous Abbey Road Studios in London on Thursday.

Demi Lovato got lost in the music at her concert in Denver on Thursday.

Hours before her new show, How to Get Away With Murder, debuted on ABC on Thursday, Viola Davis waved to fans outside the Good Morning America studio in NYC.

Jessica Alba was all smiles in NYC on Friday.

Josh Hutcherson showed off his love for the Cincinnati Reds when he popped up in San Sebastian, Spain, for the San Sebastian International Film Festival on Thursday.

Ciara was fresh-faced at the Lanvin show during Paris Fashion Week on Thursday.

Denzel Washington brought his goods looks to the set of Extra for an interview with Mario Lopez on Thursday.

On Thursday, Katie Holmes hit the red carpet at the premiere of Days and Nights with the film's director, Christian Camargo.

Britney Spears greeted her fans in Oberhausen, Germany, while promoting her lingerie line on Thursday.

Shia LaBeouf went with a colorful and revealing ensemble for the Metamarathon at the Stedelijk Museum in Amsterdam on Thursday.

Taylor Swift and her kitty cat headed out in NYC on Thursday.

Leighton Meester was the host with the most at the St. Rillian Fragrance launch event in Tokyo on Thursday.

David Beckham stopped by his wife Victoria Beckham's new flagship store in London on Wednesday.

Lady Gaga's costume was larger than life during her concert in Amsterdam on Wednesday.

LeAnn Rimes and Eddie Cibrian made a casual arrival at LAX on Wednesday.

Kendall Jenner hung out with her mom Kris Jenner at the Fashion Forward Initiative in Paris on Wednesday.

Matt Damon brought big energy to a panel discussion at the Clinton Global Initiative event in NYC on Tuesday. The actor joked around with Mohamed Parham Al Awadhi, cofounder of Peeta Planet.

Victoria Beckham made her way through JFK airport in New York on Wednesday.

Jessica Simpson made her way through NYC in high heels on Wednesday.

On Tuesday, David Hasselhoff took Justin Bieber for a ride in KITT, the car he drove in his hit TV show Knight Rider, during a music video shoot in Venice Beach, CA.

Kesha brought her cat along for a flight out of LAX on Tuesday.

Chrissy Teigen and Jamie Chung connected at the NBA 2K15 launch event in NYC on Tuesday.

Sarah Jessica Parker was her usual glamorous self at the New York City Ballet Gala on Tuesday.

Reese Witherspoon went incognito on Tuesday while at the airport in NYC.

Idris Elba attended the MOBO Awards nomination launch in London on Tuesday.

Jerry Seinfeld hosted a lunch to support the Baby Buggy Fatherhood Initiative with guests Neil Patrick Harris, Hugh Jackman, and Michael Strahan in NYC on Tuesday.

Sandra Bullock showed off lighter locks on set in New Orleans on Tuesday.

Kim Kardashian and Kanye West held hands during a Tuesday outing in London.

Jessica Simpson caught a flight out of LAX solo on Tuesday.

Minka Kelly paid for parking during an LA stop on Monday.

Orlando Bloom hit the streets of London in a sweater on Tuesday.

Kerry Washington looked stunning in yellow while visiting Good Morning America on Tuesday in NYC.

Gwen Stefani was out and about in LA on Monday.

Lady Gaga walked through Brussels in an unusual outfit on Monday.

Queen Letizia of Spain visited International Spanish Academies in NYC on Monday.

Rosamund Pike and David Tennant posed together at the London premiere of What We Did on Our Holiday on Monday.

Jennifer Morrison opted for black at the Sunday night premiere of Once Upon a Time in LA.

Sofia Vergara stopped by Access Hollywood on Monday in NYC.

Elle Fanning was gleaming with glamour at the LA premiere of The Boxtrolls on Sunday.

Joshua Jackson and Diane Kruger visited the minister of culture in Paris on Monday.

Jessica Chastain stepped out at the San Sebastian Film Festival in Spain on Monday.

Leonardo DiCaprio took the stage at the Clinton Global Citizen Awards on Sunday night in NYC.

Jennifer Lopez strutted into the spotlight during her performance in Singapore on Sunday.

Hilary Duff struck a pose at the Vevo World Premiere Party for her music video "All About You" in NYC on Wednesday.

Justin Timberlake lit up with a smile while taking a shot of a camel at the Australia Zoo in Beerwah, Queensland, on Thursday. The singer later performed for fans at his 20/20 Experience concert.