It's exactly as kooky as it sounds.
Zayn, Louis, Harry, Niall and Liam got suited up in OnePiece hooded onesies and ran around while they tried to get their handprints all over each other.
The guys smack their paint covered hands on each others' blank canvas onesies for a truly one-of-a-kind experience.
How did this video come to be?
One Direction has collaborated with onesie maker OnePiece to make special edition jumpsuits that will hit the market soon.
You may recall 1D's love of the onesies when they appeared on The X Factor in 2010.
(Sidenote: Are the guys wearing lipstick?)
The video promises that you can pre-order the One Direction OnePiece "Hands" collection at OnePiece.com, but we've yet to see ordering info at the site.