This Saturday marks 50 years, that's nothing, since ABBA's victory in the Eurovision Song Contest. Eduardo Alvarez: On April 6, 1974, not only did Abbamania begin, that planetary fever...

it also revolutionized Eurovision. The 18th edition of the contest was held in the English tourist city of Brighton. Waterloo, the song with which they rose to victory that glorious night, immediately became an anthem, he says.. ABBA returns with a new album and a concert: what has become of them in these 40 years ABBA bands: the daughter of the Nazi and the sociopath who gave voice to their music