Image: Publicity still.
Update: The clip is no longer on Youtube. Instead, it is on the band’s site, with 44m hits as of Monday 15 Feb 2016.
It is done in a Vomit Comet, in which planes climb very high and everything floats at the top as effectively it is all travelling at the same speed as the plane. But the maximum period of time for each episode is 27 seconds.