This video was posted a couple of days ago, and it's blown up with more than ten million views.
If you want to mess with people's heads, this is a great way to do it.
Photo and Retouch Artist Erik Johansson of Berlin teamed up with an American computer software company to create 'Street Retouch Prank'.
It's a Photoshop prank in which Johansson edits people into bus stop ads and posters while they wait for the bus.
It all went down in Stockholm, Sweden as part of a campaign to promote the company's "Creative Days".