Adam Lambert, Reese Witherspoon, Jennifer Lopez, Stephen Amell and More Participate in the 10-Year Challenge

While some celebrities took the “funny” route, others just really, really wanted you to tell them how good they look now.

The first viral challenge of 2019, or the last of 2018, was the #10YearChallenge trend in which people upload an image of themselves from 2009 and 2019 (or 2008 and 2018) to show the effects of age over the past decade.

Many celebrities took part in the challenge, but there was one who scoffed at it all.

“I don’t get this 10-year challenge, time is not something I acknowledge,” the caption read.

Who does not acknowledge time? Mariah Carey.

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I don't get this 10 year challenge, time is not something I acknowledge. 🤷‍♀️ *Picture taken at some point prior to today
A post shared by Mariah Carey (@mariahcarey) on Jan 16, 2019 at 1:57pm PST

A ton of other celebrities do, and here is what they posted:

Reese Witherspoon

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Time sure does fly when you are having fun!! #10YearChallenge
A post shared by Reese Witherspoon (@reesewitherspoon) on Jan 14, 2019 at 7:57pm PST

Luke Evans

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#10yearchallenge me in 2009 and so very new to the movie game, then me last week at @versace Show. But!!! Remember people, age is just a number, this is what I will be telling myself as the years roll by. Just a number. 💋
A post shared by Luke Evans (@thereallukeevans) on Jan 15, 2019 at 3:38am PST

Stephen Amell

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Not bad.
A post shared by Stephen Amell (@stephenamell) on Jan 15, 2019 at 12:57am PST

Kate Hudson

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A decade and a buzz cut later 💇‍♀️ #10YearChallenge
A post shared by Kate Hudson (@katehudson) on Jan 14, 2019 at 11:36pm PST

Cameron Dallas

https://www.instagram.com/p/Bso3pqNA-UN/

Ramona Singer

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#Repost @bravotv Like a fine wine, we just get better with time. #10YearChallenge
A post shared by Ramona Singer (@ramonasinger) on Jan 14, 2019 at 6:40pm PST

Ellen DeGeneres

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#10yearchallenge. I never realized how differently I hold my hand now.
A post shared by Ellen DeGeneres (@theellenshow) on Jan 14, 2019 at 1:53pm PST

Adam Lambert

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2008/2018 #tenyearchallenge
A post shared by ADAM LAMBERT (@adamlambert) on Jan 14, 2019 at 9:09am PST

Kendall Schmidt

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“A Decade Under the Influence” This isn’t a cryptic caption, just one of a my favorite songs that I was listening to 10 years ago, and now. #10yearchallenge #agingchallenge
A post shared by Kendall Schmidt (@kendallschmidt) on Jan 13, 2019 at 4:27pm PST

Jessica Biel

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What a difference ten years can make! Although I do still have a lot of ❤️ for my tan lines, hoops and blonde days… #10YearChallenge
A post shared by Jessica Biel (@jessicabiel) on Jan 13, 2019 at 6:37pm PST

Travis Wall

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Since everyone is doing it. I call this post…. “life”
A post shared by Travis Wall (@traviswall) on Jan 13, 2019 at 4:09pm PST

Busy Philipps

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2009/2019 No big deal. 😭
A post shared by Busy Philipps (@busyphilipps) on Jan 13, 2019 at 4:49pm PST

Leslie Jones

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Ok soooooo I’m so dramatic lol I had to do this y’all but my way!! Lol #chocolategirl #blackdontcrackstillneedlotionthough #samefuckingsmile
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A post shared by Leslie Jones (@lesdogggg) on Jan 13, 2019 at 10:05pm PST

Nick Cannon

https://www.instagram.com/p/BslxmktBJ2g/

Jennifer Lopez

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#10yearchallenge #challengeaccepted ♥️
A post shared by Jennifer Lopez (@jlo) on Jan 15, 2019 at 1:34pm PST

Mark Ruffalo

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✌️ #10YearsChallenge #20yearsmarriage
A post shared by Mark Ruffalo (@markruffalo) on Jan 15, 2019 at 11:37am PST

Nyle DiMarco

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Alright alright alright my turn! 10-year challenge!!! I was 19. Traveled around Costa Rica with my school backpack at the time this picture was taken. I only brought two shirts, two shorts and a pair of shoes. BROKE BUT HAPPY. Slept in hostels, hammocks by the beach, stranger’s home, and even on streets (how did I not get attacked or robbed!?! I guess me being deaf helped ignore thiefs trying to talk to me!). Life of the party and did not care about my future because my passion was no where to be found. Oh to go back… and at the same time to leave it there because I absolutely love what I do now, specifically changing the perception of deaf and disabled people. If I told my 19 year old self who I would be in 10 years, my 19 year old self would throw his first generation T-Mobile sidekick phone (at the time) to my current self, thinking I’m one crazy fucker! love you all and pura vida!!! xx #10yearchallenge
A post shared by Nyle DiMarco (@nyledimarco) on Jan 15, 2019 at 8:09am PST

Garrett Clayton

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#10YearChallange #2009vs2019
A post shared by Garrett Clayton (@garrettclayton1) on Jan 15, 2019 at 8:17am PST

Courtney Stodden

https://www.instagram.com/p/BsrpT6MBoGg/

Jessica Simpson

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#tenyearchallenge (📸 @backgrid_usa)
A post shared by Jessica Simpson (@jessicasimpson) on Jan 17, 2019 at 4:43pm PST

Drake Bell

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#10yearchallenge
A post shared by Drake Campana (@drakebell) on Jan 17, 2019 at 5:22pm PST