Which song did Björn, Benny, Agnetha, and Anni-Frid, who eventually became Abba, sing in their bid to represent Sweden at the Eurovision Song Contest in 1973?

Culture Trivia: Which song did Björn, Benny, Agnetha, and Anni-Frid, who eventually became Abba, sing in their bid to represent Sweden at the Eurovision Song Contest in 1973?