"We used poster paint," Finnegan told Dezeen. "It's really cheap to buy and is non-toxic and washes off really easily. We would just leave the camera rolling while Richie sang, then I'd squirt more paint on his face every now and then. It was great fun."
As Egan sings the lyrics to the song, he swallows a strange, worm-like creature, which goes on a trippy underwater journey for the rest of the video.
"The line that stuck out most for me in the song was 'allow yourself to breathe,'" Finnegan said. "So we had this idea where we'd have a eel creature that would be struggling to exist on land but when it goes inside the head it can breathe. Then it goes on a sort of a journey to the end and finally death."
Finnegan shot the underwater scenes with a GoPro camera in an 18-foot-long home-made tank lined with rocks and plants scavenged from neighbours' gardens. He added in the animation with motion graphics software After Effects.
"The underwater stuff was shot in a tank in my mum's back garden," he explained. "It was made from an old fence that had come down in a storm. I got most of the sand from a beach nearby. Then I taped a GoPro to a pole and would do a few passes, move the rocks and plants around so it looked different then I'd shoot a bit more."
There were supposed to be real fish in the video, but the goldfish Finnegan bought and added to the tank turned out to be reluctant actors.
"You can only barely see one in the video," he complained. "They were crap and just hid behind rocks most of the time."