ABBA collaborator Rutger Gunnarsson dies

Swedish musician Rutger Gunnarsson, known for his bass playing on ABBA records and tours, has died at the age of 69

Swedish musician Rutger Gunnarsson, known for his bass playing on ABBA records and tours, has died at the age of 69, Universal records announced Friday.

He died at his home in Stockholm, but the cause and date of his death were not revealed.

"Rutger was most known for his long and close collaboration with Bjorn Ulvaeus, Benny Andersson and ABBA, having worked on all their albums, singles, tours, films and musicals," Universal said in a statement.

Bass fans are particularly fond of his contributions to hits like "Dancing Queen", "Knowing Me Knowing You" and "Money, Money, Money".

The four members of ABBA, Anni-Frid Lyngstad, 69, Agnetha Faltskog, 65, Ulvaeus, 70, Andersson, 68, have not played music together since 1986.