Can't-Miss Celebrity Pics!

Mary J. Blige and Justin Theroux had a chat at the Alexander Wang x H&M Collection event in NYC on Thursday.

Reese Witherspoon hit the pavement in heels in LA on Thursday.

Kim Kardashian went with an all-black ensemble for her errand run in LA on Thursday.

Missy Elliot took the stage by storm at the Alexander Wang x H&M Collection event in NYC on Thursday.

Shia LaBeouf and Brad Pitt buddied up to promote their movie Fury at Fort Benning in Columbus, GA, on Thursday.

Gwen Stefani's HSN appearance on Thursday wasn't just about her Harajuku Lovers perfumes — she also shared a laugh with host Amy Morrison.

Mario Cantone was in stellar company with Ben Stiller and newlyweds Katie Couric and John Molner at the Tomorrow Is Tonight gala benefiting Project A.L.S. in NYC on Thursday.

On Friday, Kris Jenner smiled wide in LA before news about her ex Bruce Jenner's reported relationship with her best friend emerged.

Dwayne "The Rock" Johnson's pearly whites came out at a press event for his movie Hercules in Beijing on Thursday.

As his new wife Amal Alamuddin got back to work, George Clooney returned to the set of Tomorrowland in Vancouver on Thursday.

Laverne Cox radiated glamour at the premiere of Logo's Laverne Cox Presents: The T Word in NYC on Thursday.

Pink waved to her fans outside Jimmy Kimmel Live in LA on Thursday.

Miles Teller popped up at LAX with his girlfriend Keleigh Sperry on Thursday.

Scott Disick spent time with Kourtney Kardashian before he hung out at 1 Oak nightclub in LA on Thursday night.

Jessica Chastain, Dakota Fanning, Eddie Redmayne, and Kate Mara attended the Alexander Wang H&M collection launch in NYC on Thursday.

Sienna Miller dazzled in a gold gown at the London premiere of Foxcatcher on Thursday.

Prince Harry suited up for a special gala in London in Thursday night.

On Wednesday, Kim Kardashian proved rules are made to be broken when she wore white over a month after Labor Day in LA.

Queen Elizabeth II and Prince Philip, Duke of Edinburgh, visited the Blood Swept Lands and Seas of Red installation at the Tower of London on Thursday.

On Wednesday, Naomi Watts and Liev Schreiber went on a bike ride in NYC.

Quvenzhané Wallis hung out with a furry pal while promoting her new book, My Very, Very Busy Day, in NYC on Wednesday.

Kristen Stewart was covered up in LA on Wednesday.

Selena Gomez greeted her fans outside Jimmy Kimmel Live on Wednesday.

Nick Jonas had a picturesque backdrop at the Jonathan Strange & Mr Norrell photocall in Cannes, France, on Wednesday.

On Wednesday, Reese Witherspoon looked picture-perfect after landing at LAX.

Hilary Duff lit up with a smile after arriving at LAX on Wednesday.

Lady Gaga put on a memorable show in Birmingham, England, on Wednesday.

Paula Abdul visited The Meredith Vieira Show in NYC on Wednesday. She and Meredith discussed her music video about breast cancer awareness, which she teamed up with Avon to produce.

Brad Pitt looked handsome as ever at the Washington, DC premiere of his film Fury on Wednesday.

Shailene Woodley looked gorgeous at the NYC premiere of White Bird in a Blizzard on Wednesday.

Tobey Maguire and Jennifer Meyer stepped out for the opening of the renovated Barneys New York store in LA on Wednesday.

Emma Stone got very comfortable during her appearance on The Tonight Show Starring Jimmy Fallon in NYC on Tuesday.

Jamie Dornan and Dakota Johnson shared a passionate kiss while reshooting scenes for Fifty Shades of Grey in Vancouver on Tuesday.

Miles Teller's signature smirk was on display despite rainy weather at the London Film Festival premiere of Whiplash on Wednesday.

Kourtney Kardashian's baby bump was front and center in LA on Tuesday.

Alicia Keys and Swizz Beatz got adorable at a #BringBackOurGirls protest in NYC on Tuesday.

Brad Pitt stepped out in NYC on Wednesday.

James Marsden had Michelle Monaghan's attention at the Fulfillment Fund Stars Benefit Gala at the Beverly Hilton in Beverly Hills, CA, on Tuesday.

Nick Cannon and Julianne Hough were all smiles at Samsung's #DITCHtheDSLR event in LA on Tuesday.

Nicole Richie donned a colorful ensemble for her appearance on The View in NYC on Wednesday.

On Tuesday, Jessica Alba and Rosario Dawson glowed at the Self event in LA.

Charlie Hunnam brought a big smile to the set of Sons of Anarchy in LA on Tuesday.

Paris Hilton went shopping with her puppy in LA on Tuesday.

Jennifer Hudson bared her midriff at LAX on Wednesday.

Brad Pitt surprised everyone at the NYC screening of Fury on Tuesday night.

Beyoncé led the way for Jay Z in London on Wednesday.

Robert Downey Jr. popped up in Italy for the Tuesday night premiere of The Judge.

Neil Patrick Harris signed copies of his book, Choose Your Own Autobiography, on Tuesday in NYC.

Kristen Stewart went casual for an LA outing on Monday.

Alessandra Ambrosio wore overalls for a trip to Mr. Bones Pumpkin Patch in LA on Monday.

George Clooney's wife, Amal Alamuddin, arrived in Athens, Greece, for work on Monday.

Channing Tatum stepped out of his NYC hotel solo on Monday.

Shia LaBeouf sported hot pink leggings in support of breast cancer awareness while filming for Jimmy Kimmel Live in LA on Monday.

Jessica Alba and Jaime King ran into each other at an LA pumpkin patch over the weekend.

Dakota Johnson braved the rain in Vancouver, British Columbia, Canada, while filming reshoots for Fifty Shades of Grey on Monday.

Emma Stone and Michael Keaton linked up for the 92nd Street Y Film Series in NYC on Monday.

In Cannes on Monday, Nick Jonas and Olivia Culpo stepped out for MIPCOM 2014.

Miranda Kerr struck a runway-ready pose when she arrived at Incheon Airport in South Korea on Monday.

Miley Cyrus performed at the Sydney Opera House in Australia on Monday.

Jennifer Lawrence was all smiles at the London Film Festival Serena premiere on Monday.

On Monday, Josh Duhamel teamed up with a youth hunger activist for the Rally America to "Share a Meal" to End Hunger event in NYC.

Lindsay Lohan stepped out for the Women of the Year lunch at London's InterContinental Park Lane Hotel on Monday.

Reese Witherspoon stunned on the red carpet in London for the premiere of Wild on Monday.

Gisele Bündchen kicked up her heels at the Chanel dinner celebrating No. 5 The Film in NYC.

Britney Spears flaunted her famous tummy in a short t-shirt in LA on Wednesday.

Halle Berry made a stylish appearance at the Golden Heart Awards in NYC on Thursday.

Jennifer Garner sipped on her treat while talking on the phone in LA on Thursday.