Agnetha Faltskog has hinted ABBA could reform next year.

In recent years she has been seen as the main barrier to the Swedish quartet reforming, but has revealed the group are considering getting back together more than 30 years after their bitter split. She told German newspaper Welt Am Sonntag that she, Anni-Frid Lyngstad, Björn Ulvaeus and Benny Andersson are considering reforming in 2014 to mark the 40th anniversary of first hit 'Waterloo'. "Of course it's something we're thinking about," she said. "There seem to be plans to do something to mark this anniversary in some way. I can't say at this point what will come of them."

As recently as 2008, Andersson and Ulvaeus vowed not to reform, and turned down an alleged $1billion offer in 2000 to reunite for a tour. Ulvaeus is on record saying money is not a factor in their reformation, and that he would prefer fans to remember the band as they were, "young, exuberant, full of energy and ambition."

ABBA formed in 1972, and rose to global fame after winning the Eurovision Song Contest two years later with 'Waterloo'. They soon had numerous hits to their name, and have since sold 380 million records around the world. They split in 1982 when the marriages of Agnetha and Björn, and Anni-Frid and Benny ended in divorce. Faltskog rarely appeared in public after the split, saying she had "overdosed on fame" although did release a well-received solo album earlier this year, and did also say she might think about reuniting with her former bandmates for a charity performance.