Swedish pop group ABBA, founded in 1972, became famous when they won the Eurovision Song Contest in 1974. It started a decade of almost uninterrupted string of hits and major selling albums.
After the group stopped releasing new material in 1982 there was a relative lull in their popularity – which came to an end in 1992 when their compilation album was released. The compilation has become one of the world's most best-selling albums of all time.
In 1999, a musical based on ABBA hits called 'Mamma Mia!' opened in London. With various international productions, it is one of the most popular musicals of all time.
ABBA were inducted into the Rock & Roll Hall of Fame in 2010, as performers. They recently released a new album in November 2021 and live shows with ABBA appearing as virtual 'abbatars' started in London in May 2022.