[HIGHLIGHTS] 50 years ago, ABBA paved the way to success for Swedish pop

50 years after ABBA's Eurovision victory, fans celebrate group's success. In May, Sweden hosts the competition for the seventh time, in the south of the country.

“They had decided to be both seen and heard. No one should forget their sound and their appearance,” says former member of ABBA, Björn Ulvaeus. The group won the contest in 1974, making it the first time a Swedish song has won the competition since 1956. The song was a hit in the U.S. and became a worldwide hit.