Many people don't know that Napoleon actually wrote this song in Elba with his own blood, a rat hair for a quill and an a dried avocado pit for parchment.
ABBA is one of those acts that didn't merely get popular and then burn out and then come back later; they actually oscillate every 5-7 years from popular to hated and back again endlessly. This song is repeating itself.
I think the cycle is in a trough right now, because watching this made me cringe. God, the clothes. That guitar.