Smile, it's National Selfie Day! Here's some fun celebrity snapshots

Get your front-facing camera ready -- it's National Selfie Day!

Here's a bunch of our favorite smiles, side eyes and snapshots celebrities shared this year.

Kawhi Leonard and Drake

The rapper shared a selfie taken with Toronto Raptors star Kawhi Leonard from the NBA Finals celebrations after the team's historic title.

Serena Williams and Roger Federer

The two tennis stars took a selfie on New Year's Day in Perth, Australia, after their first match together.

John Legend and Chrissy Teigen

This power couple, along with daughter Luna and son Miles, is always snapping amazing selfies of their adorable family.

Lisa Kudrow, Courtney Cox, Jennifer Aniston

The three former "Friends" co-stars shared a photo on Cox's birthday that showed they're still, well, best of friends.

Dame Helen Mirren and Jason Momoa

The actor known for his roles as Kahl Drogo and Aquaman took this enthusiastic pic with the British actress at the Oscars.

Andy Cohen

The Bravo TV show host recently shared a sweet selfie with his son.

"I got the best birthday present of all," he wrote.

Serena Williams with her baby Alexis Olympia Ohanian, Jr.

The tennis superstar snapped an adorable selfie with her daughter just weeks after she was born.

Joe Biden and Barack Obama

The former vice president shared a selfie with the former president for Obama's 57th birthday in August.

Ryan McKenna aka Selfie Kid

Who could forget the moment during Justin Timberlake's Super Bowl halftime performance when Ryan McKenna rose to viral fame for his epic photo with the iconic performer?

Senator Kamala Harris

The Democratic presidential candidate tweeted a series of selfies from the campaign trail in honor of the social media celebration.

NASA Astronaut Nick Hague

Hague shared a selfie that's literally out of this world.