
How many times has ABBA toured North America?
Agnetha, Björn Ulvaeus, Benny, and Anni-Frid are just four unassuming Swedes who happen to make up the acronym (and palindrome) ABBA.
Breaking out in 1974 as Sweden's first winner of the Eurovision Song Contest, the group has since become one of the best-selling of all time with over 400 million...