ABBA won the Eurovision Song Contest in 1974 representing which country?

The Eurovision Song Contest is an international song competition, organised annually and featuring participants representing primarily European countries. Each participating country submits an original song to be performed, with competing countries then casting votes for the other countries' songs to determine a winner.

Based on the Sanremo Music Festival held in Italy since 1951, Eurovision has been held every year since 1956, with the exception of the cancelled 2020 edition, making it the longest-running annual international televised music competition. As of 2019, 52 countries have participated at least once. Germany has competed more times than any other country, having participated in all but one edition, while Ireland holds the record for the most victories, with seven wins in total.

ABBA is a Swedish pop supergroup formed in Stockholm in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. The group's name is an acronym of the first letters of their first names. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1974 to 1982. ABBA won the Eurovision Song Contest 1974, giving Sweden its first triumph in the contest. ABBA were honoured at the 50th anniversary celebration of the Eurovision Song Contest in 2005, when their hit "Waterloo" was chosen as the best song in the competition's history.