You may have noticed the hashtag #10YearChallenge flooding your timeline accompanied by side-by-side photos of your friends, enemies, and frenemies, a decade apart.
Celebrities quickly jumped on board, sharing pics of their 2009 selves next to pics of their 2019 selves. What some took as a fun viral game (Brie Larson), others have taken as an opportunity for introspection(a la Tommy Dorfman), a phenomenal brag (looking at you, Kate Beckinsale and Gabrielle Union), or a fun lil joke (see Diplo, below.)
Others have a darker theory: the overlords at Facebook started the #10YearChallenge to train a facial recognition algorithm on aging, and packaged it inside a seemingly innocuous viral hashtag to dupe all us dummies. That’s a story for a different day, though.
Here are 34 celebrities who participated in the challenge, many of whom don’t have to worry about the algorithm as they’ve already employed methods of foiling the natural aging process.