Shout out to Tom Holland for putting the Handstand Challenge on the map.
The actor posted an Instagram Story of himself putting his shirt on while doing a handstand, before calling on Jake Gyllenhaal and Ryan Reynolds to do the same.
Mastering the Handstand Challenge isn't as easy as Holland makes it look, though — you try balancing upside down on one hand as you put a t-shirt on with your other hand! (Remember: you can put your feet against a wall for balance!)
Once you've mastered the move, invite your friends to do the same by posting a video to social media and tagging them.