Fans may remember them as willowy youths swinging to the Dancing Queen. The four are now aged between 71 and 76. Their knees are rickety. Agnetha’s once-golden hair has turned grey.
Abba is a famous Swedish music band that performed its last concert in 1980. In their heyday, Agnetha Fältskog, Björn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad enraptured the world.
Many readers were not born then, but they may soon be dancing to its tunes. Abba is making a comeback after more than 41 years.

