A lot can change in ten years, and sometimes it can really throw you through a loop that the musician you grew up with has gotten that old or somehow that child actor has become an adult without you realising.

Recently, the '10 year challenge' lead to many people across social media sharing photos of themselves in 2009 and 2019, and even some big celebrities got in on the action. Some of these big stars end up ageing so well, it's hard not to get a little jealous when the years just don't show whatsoever...

Janet Jackson

[[instagramwidget||https://www.instagram.com/p/Bsly31Fh9EP/]]

Tyra Banks

[[instagramwidget||https://www.instagram.com/p/BsmHjnYntMi/]]

Alison Brie

[[instagramwidget||https://www.instagram.com/p/BsoH8Wul60f/]]

Nicki Minaj

[[instagramwidget||https://www.instagram.com/p/BsnwgIQg28p/]]

Ellen DeGeneres

[[instagramwidget||https://www.instagram.com/p/BsoXo9BBWRG/]]

Gabrielle Union

[[instagramwidget||https://www.instagram.com/p/Bsn_oHxn4NN/]]

Jessica Biel

[[instagramwidget||https://www.instagram.com/p/BsmTSQXlLja/]]

Reese Witherspoon

[[twitterwidget||https://twitter.com/RWitherspoon/status/1085024279559692288]]

Ryan Seacrest

[[instagramwidget||https://www.instagram.com/p/BsndaRjga_A/]]

Viola Davis

[[twitterwidget||https://twitter.com/violadavis/status/1085003930520580102]]

Caitlyn Jenner

[[instagramwidget||https://www.instagram.com/p/BsqZBpmhz71/]]

A lot of these celebrities look pretty much exactly the same as they did 10 years ago. Having all the money in the world to pay for personal trainers and caterers probably doesn't hurt - but there's probably something to learn from their lifestyles.

11 of the best celebrity '10 year challenge' photos