Singer Agnetha Faltskog also regrets the band's lack of choreography during live shows
'We Write the Story' will be performed at this year's event in Sweden on May 18
The Swedish band's greatest hits collection has sold more CDs than Adele's '21'
Ladbrokes also offer odds of Swedish band appearing at Royal Wedding
Benny Andersson threatens legal action over the use of their 1976 hit
Jimmy Cliff and David Geffen also due to be honoured
Half of the Swedish band will take part in London Hyde Park gig
'Kristina' is set for two nights at Carnegie Hall
Andersson reckons contest is no longer worthwhile musically
Benny Andersson reveals pop side-project collaboration