ABBA - Waterloo

‘Waterloo’ was a winning entry for Sweden in 1974, but it was an even bigger breakthrough song for ABBA, who debuted under their group name that night in Brighton, UK, and went on to sell nearly six million copies of the track, making it one of the best-selling singles in history.

After the success of the Eurovision track, ABBA ruled the globe and continue to be one of the best-selling pop acts in the world.