The Weekend's Must-See Snaps!

Ryan Reynolds got dressed up for a good cause on Saturday. He attended The Michael J. Fox Foundation's gala "A Funny Thing Happened on the Way to Cure Parkinson's" in NYC.

Joe Jonas soaked up the sun in Cancun, Mexico, on Friday.

Geri Halliwell had Prince Harry laughing at the Abu Dhabi Grand Prix on Saturday.

Hilary Swank walked the red carpet at Fox's Cause for Paws event in LA on Saturday.

Matt Damon took a stroll in LA on Saturday.

Sienna Miller glowed without makeup at LAX on Saturday.

Chris Martin went grocery shopping in LA on Friday.

Orlando Bloom left his jacket open on the set of Unlocked in Prague, Czech Republic, on Thursday.

Taylor Swift showed off her street style in LA on Saturday.

Jennifer Aniston and Justin Theroux stayed close at a screening of her new film Cake in LA on Friday.

On Friday, Reese Witherspoon posed for a selfie with Paula Abdul at the the Lupus LA Hollywood Bag Ladies Luncheon in LA.

On Saturday, Julianne Moore attended the A Funny Thing Happened on the Way to Cure Parkinson's event with her husband, Bart Freundlich, and their daughter, Liv Freundlich, in NYC on Saturday.

Angelina Jolie was fresh faced in NYC on Friday.

Kanye West stayed warm at LAX on Friday.

Kendall Jenner went shopping at Barneys New York in Beverly Hills on Friday.

Fergie stepped out in style in LA on Saturday.

Kate Upton donned an extravagant warrior costume at an event to promote Game of War: Fire Age video game at the G-Star 2014 Global Game Exhibition in Busan, South Korea, on Saturday.

Sarah Michelle Gellar went with a casual look to run errands in LA on Friday.

Alessandra Ambrosio bared her midriff after her workout in LA on Saturday.

Emmy Rossum smiled widely at LAX on Friday.

Nicole Kidman and Keith Urban showed sweet PDA on the red carpet at the premiere of Paddington in London on Sunday.