You don't know this band, but the song and video are fun on account of the backstory behind it.
In the mid-00's someone posted on an internet bulletin board asking for help finding the name and origin of a song. He'd recorded a lot of songs off a German radio station back in the 80's and had recently been going through and identifying all of the titles and artists, some of them fairly obscure, and he'd managed to get them all except for this one. The post set off a niche but intensive search for the song and the band behind it, one that didn't seem to make much headway. They checked old music archives and program lists, found and contacted the now-retired DJ who's program had likely played the song - all seemingly to no avail. At one point some band (falsely) came forward and even went so far as trying to copyright the song, but nobody believed it was really them.
Finally at the end of last year someone followed enough clues that led them to a local German amateur music festival whose acts sometimes got radio play maybe once or twice, and found this band whose lead's voice sounded like it could be the one. He tracked down one of the members of this long-defunct band, who was astounded that people had spent almost 20 years trying to find them, and confirmed it was their song - he even still had an old demo tape with that song on it, among others.
All three members of this old garage band, all of whom had moved on with their lives, came together to put out this new video in appreciation. The person who is shown listening on headphones is "Darius", the one who posted the original request for help finding the song back in 2007, and the cassette tape is his original from the 1980's as well.