As the name would suggest, the challenge is to post two images to Instagram side by side, one current photo and one of yourself 10 years ago.
As expected celebrities have rolled with the latest trend, and the results are HILARIOUS.
Here are the best #10yearchallenge posts from all our favourite Australian celebrities.
Pettifleur Berenger
Chef Matt Moran
Fiona Falkiner
Guy Sebastian
Fitzy
David Campbell
Hugh Sheridan
Deborah Knight
Samara Weaving
Carrie Bickmore