10 year challenge
10 year challenge of Mark Zuckerburg

If you use social media, you’ve probably noticed a trend across Facebook, Instagram, and Twitter of people posting their then-and-now profile pictures, mostly from 10 years ago and this year.

Now there’s a new trend you’ve probably spotted on your feed: #10YearChallenge, which has been picking up speed on Instagram and Twitter with thousands of people, including plenty of celebrities.

Here’s everything you need to know about the challenge – along with a few of our favourite posts, from Miley Cyrus and Liam Hemsworth through to Jameela Jamil, and a very sweet one from Romeo Beckham.

What is the 10 year challenge?

The 10-Year Challenge, or the 2009 vs. 2019 Challenge, or the Glow Up Challenge, or the How Hard Did Aging Hit You Challenge, whatever you want to call it, is simple: You post a photo of yourself in 2009 next to a photo of yourself in 2019. Caption it whatever you want. That’s it!

The 10 year challenge goes by many names: the #HowHardDidAgingHitYou challenge, the aging challenge and #GlowUp challenge, though the trend has picked up the most speed as the 10 year challenge. Participants simply post two images – usually side by side – which were taken at least ten years apart. The overall message? Self love and showing the world how you’ve “glowed up” (or, you know, showing how you haven’t aged a day).

How to do the 10 year challenge on Facebook or Instagram

Participating in the challenge is pretty easy. All you have to do is share two side by side photographs of you ten years apart, then post it to your Facebook/Instagram account with the hashtag #10YearChallenge, though some people just choose to post a single throwback shot.

The meme started to take off after the start of the new year, largely on Facebook, Instagram, and Twitter. At its core, the 10-Year Challenge is a wholesome, socially acceptable way to brag about how hot you used to be, how hot you are now, or how hot you were and continue to be. (You can also replace the word “hot” with other adjectives, like “educated” or “married” or “unfathomably rich.”)