Swedish pop stars Abba have raised fans' hopes of a reunion by confirming plans to mark the 40th anniversary of the release of their hit single Waterloo. The group, which released its last album in 1982, has long denied speculation they would ever get back together, but band member Agnetha Faltskog has now revealed they hope to mark the 2014 anniversary of the single which propelled the group to success at the Eurovision Song Contest in 1974. The singer tells German magazine Welt am Sonntag, "Of course it's something we're thinking about... There seem to be plans to do something to mark this anniversary in some way. But I can't say at this point what will come of them." However, Faltskog played down suggestions they will stage a formal reunion by insisting they are too old, adding, "I cannot imagine that we would go on stage with crutches."