Can't-Miss Celebrity Pics!

Rumored girlfriends Kristen Stewart and Alicia Cargile kicked off their Thursday with a relaxing stroll, sipping coffee while making their way through LA. In other fun moments, John Krasinski fit in a workout, Kate Moss was the center of attention at a fashion show, and Michelle Obama had a fun party at the White House. Keep reading to see all that and more!

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Jennifer Aniston made a memorable arrival to The Daily Show in NYC on Thursday.

Getty | Kevin Winter

Olivia Munn and Ewan McGregor got close on the red carpet at the premiere of their movie Mortdecai in LA on Wednesday.

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Kate Moss joined Louis Vuitton CEO Michael Burke in the front row at the company's Paris Fashion Week show on Thursday.

Getty | Win McNamee

Michelle Obama had a Cat in the Hat-themed party with kids at the White House after a reading of Oh, The Things You Can Do That Are Good For You: All About Staying Healthy on Wednesday.

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The gym was a top priority for John Krasinski in LA on Thursday.

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Reese Witherspoon caught some fresh air in LA on Thursday.

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Usher stayed warm in a svelte outfit in NYC on Thursday.

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Lea Michele exuded excitement in LA on Wednesday.

Getty | Pablo Cuadra

On Thursday, Jennifer Connelly filmed an episode of El Hormiguero for Spanish TV with a bird.

Getty | Steve Granitz

Gwyneth Paltrow hit the red carpet for the LA premiere of Mortdecai on Wednesday.

Getty | Dimitrios Kambouris

Jennifer Lopez spoke at a Q&A for her movie The Boy Next Door at AOL Studios in NYC on Wednesday.

Getty | Chris Jackson

On Tuesday, Emily Blunt adoringly accompanied her pal Christoph Waltz at IWC's Journey to the Stars Gala Dinner in Geneva, Switzerland.

Getty | Jason LaVeris

Kevin Costner had the sweet support of his wife, Christine Baumgartner, and daughter Lily Costner at the Black or White premiere in LA on Tuesday.

Getty | Charley Gallay

On Tuesday, Demi Lovato and Wilmer Valderrama stayed close during Nick Jonas's party at LA hotspot The Ivy in LA.

Getty | Mark Robert Milan

Cara Delevingne proved she's a red carpet queen at the YSL Loves Your Lips event in London on Tuesday.

Getty | Kevin Winter

Octavia Spencer, Anthony Mackie, and Jillian Estell hit the red carpet at the premiere of their movie Black or White in LA on Tuesday.

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Reese Witherspoon had a pep in her step during her workout in LA on Wednesday.

Getty | Raymond Hall

Jennifer Aniston's early call time didn't damper her spirit at Good Morning America in NYC on Tuesday.

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Ryan Gosling and Russell Crowe shared a laugh-out-loud moment on the set of The Nice Guys in LA on Wednesday.

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Halle Berry flashed a smile while running errands in LA on Wednesday.

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Jennifer Garner chatted on her cell phone while out in LA on Tuesday.

Getty | Dimitrios Kambouris

Anne Hathaway was in all white on Tuesday for the premiere of Song One in NYC.

Getty | Christopher Polk

Gwen Stefani was picture-perfect for a concert announcement in LA on Tuesday.

Getty | Franziska Krug

Bar Refaeli posed at the STYLIGHT Fashion Influencer Awards in Berlin on Tuesday.

Getty | Neilson Barnard

Julianne Moore was honored by the Museum of the Moving Image in NYC on Tuesday.

Getty | Andreas Rentz

Elizabeth Hurley and Katie Holmes made a pretty pair at the Marc Cain fashion show in Berlin on Tuesday.

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Shia LaBeouf enjoyed a coffee in LA on Tuesday.

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Dakota Johnson had a fashion moment in LA on Tuesday.

Getty | Bennett Raglin

In NYC on Tuesday, TLC and New Kids on the Block posed with a cardboard cutout of Nelly at a press conference for their upcoming tour.

Getty | Neil Mockford/Alex Huckle

Meghan Trainor spent time with fans in London on Tuesday.

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Ben Affleck had an intense action scene on the set of The Accountant in Atlanta on Tuesday.

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The Flash star Grant Gustin sported his sexy red costume while filming scenes in New Westminster, Canada, on Monday.

Getty | Karwai Tang

Jessica Chastain was fresh-faced while promoting A Most Violent Year in London on Tuesday.

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Jennifer Lopez made a picture-perfect arrival outside The Wendy Williams Show in NYC on Tuesday.

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Gwen Stefani rocked serious camo in LA on Monday.

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Vince Vaughn had a snack on the set of his movie in LA on Tuesday.

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Sharon Osbourne headed out in Beverly Hills with her adorable BFF on Monday.

Getty | Dave J Hogan

Johnny Depp and Amber Heard turned the London premiere of Mortdecai into a Monday date night.

Getty | Carlos Alvarez

Queen Letizia of Spain attended a Monday morning meeting in Madrid.

Getty | Kevin Tachman

On Sunday, Charlie Hunnam made a dapper appearance at Milan Fashion Week's Calvin Klein show.

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Emily Blunt strolled through London's Heathrow airport on Monday.

Getty | Paras Griffin

David Oyelowo spoke on stage during a commemorative service to Martin Luther King Jr. on Monday in Atlanta.

Getty | Chris Jackson

Kate Middleton made a Monday appearance in London.

Getty | Chung Sung-Jun

Russell Crowe snapped a selfie with a fan at the Monday premiere of The Water Diviner in Seoul, South Korea.

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Jennifer Lopez made a pit stop on Good Morning America on Monday in NYC.

Getty | Vittorio Zunino Celotto

Dane DeHaan, Miles Teller, Ansel Elgort, and Filippo Timi made a good-looking group at the Prada event during Milan menswear Fashion Week in Italy on Monday.