Ulvaeus said "money is not a factor and we would like people to remember us as we were. Young, exuberant, full of energy and ambition."
ABBA was one of the biggest bands of the 1970s, with hits including "Waterloo," ''Dancing Queen" and "Money, Money, Money." The group also included singers Agnetha Faltskog and Anni-Frid Lyngstad.
ABBA split in 1982 but continues to sell nearly 3 million records a year. Last week all four members appeared at the Swedish premiere of "Mamma Mia!," a film based on their hits.
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