here's a video I've never seen, for a band that was everywhere in the 1970s. I used to roller skate to this song, way back when, and it's still one of my favorite ABBA songs.
these were called "promotional movies" back in the 70s, and many bands were doing them. KISS did a couple for their second or third album, mostly just concert footage. there were a few that tried to tell a story as well, but you'll have to find those. I don't miss the 70s haircuts, that's for sure.