This Japanese music video is quite strange
"My theory is that all this is actually taking place inside the iMac that we see being smashed on the side of the road. Everything else is a hallucination of the now-broken machine, a massive system failure seen from the inside. Eventually, all the objects the computer has ever encountered are compiled into a Katamari Damacy-style snowball before the computer finally flickers off, leaving the video to end and the woman to dance into the distance as the lone survivor of the chaos depicted therein." - via The Verge
For my money, this is still hands-down the strangest Japanese music video that comes to mind:











