LONDON, May 24 (UPI) -- Queen Elizabeth is a secret Abba fan, owning a collection of albums by the Swedish supergroup, a source said.
The queen's passion for the group was revealed after Prince Charles was invited to watch the musical based on Abba songs, "Mamma Mia," at a West End theater on June 10, Britain's Sun reported Monday.
"It will be interesting to see if the Queen tries to get her hands on the tickets," the source said.
The source said the queen not only listens to Abba, but occasionally dances as well.
"She moves to the music," the source said.
Abba found fame 30 years ago when songwriters Benny Andersson and Bjorn Ulvaeus and singers Agnetha Faltskog and Annifrid Lyngstad won the Eurovision song contest with "Waterloo."
Before the band split in 1981, Abba sold more than 350 million records.
