Ever wanted to go back in time and tell your younger self something? To give them advice on how to do certain things or act in a certain way?
Dutch artist Ard Gelinck hasn't invented the time machine just yet, but his brilliantly photoshopped images of iconic people and their younger versions might just be the next best thing.
The seemingly posed photographs depict celebrities such as Freddy Mercury, Tom Hanks and Madonna side by side in before-and-after versions of themselves, looking for all the world like best buddies hanging out and having a great time together.
We've selected our favorite of Ard's works, which you can see below. Which are your favorites? Let us know in the comments!