Reese Witherspoon, #10YearChallenge

Instagram; Dominik Bindl/Getty Images; X17online.com

A lot can happen in 10 Hollywood years.

For those who have a social media account, it's safe to say you've seen more than a few followers participate in a viral movement. If you didn't already guess, it's the #10YearChallenge.

Men and women willing to participate must share a picture of themselves from 2009. Then, they post another photo of themselves in 2019. 

As you likely could have guessed, hairstyles have changed, fashion has evolved and careers have transformed in the past decade. Ultimately, people can't stop browsing the hashtag. 

Well, almost everyone. Real Housewives of Beverly Hills star Lisa Rinna said she won't be participating for a pretty epic reason. "I'm not doing that 10 year challenge," she wrote on Twitter. "I looked f--king great in 2009 and I look even better now." Zing!

But don't worry pop culture fans! Your favorite singers, actor and reality stars are happily participating. Take a look at just some of the epic moments in our gallery below.

Reese Witherspoon, #10YearChallenge

Instagram; Frazer Harrison/Getty Images; Jeff Spicer/Getty Images

Madonna, #10YearChallenge

Instagram

Jameela Jamil, #10YearChallenge

Twitter

Ellen DeGeneres, #10YearChallenge

Instagram

Janet Jackson, #10YearChallenge

Instagram

Amy Schumer, #10YearChallenge

Instagram

Remy Ma, #10YearChallenge

Instagram

Jenni "JWoww" Farley, #10YearChallenge

Instagram

Luann de Lesseps, #10YearChallenge

Instagram

Reese Witherspoon, #10YearChallenge

Instagram; Dominik Bindl/Getty Images; X17online.com

Nicole "Snooki" Polizzi, #10YearChallenge

Instagram

Cassadee Pope, #10YearChallenge

Instagram; Jeff Vespa/WireImage; Jason Kempin/Getty Images

Bobby Bones, #10YearChallenge

Instagram; Mike Coppola/Getty Images for CMT

So who's next to participate in the social media movement? We have our eyes peeled to the gram.

For now, we're going to have to find the best lighting before we take the challenge. Anyone have a Lumee on hand?

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