Sweden was represented by ABBA when the group won Eurovision in 1974.
ABBA performed “Waterloo” for Sweden at the 1974 contest in Brighton, United Kingdom. Their energetic performance and distinctive glam-pop presentation helped the song win, launching one of the most successful recording careers associated with Eurovision.
The victory was Sweden’s first in the contest. ABBA’s members were Agnetha Fältskog, Björn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad. “Waterloo” later became an international hit well beyond the contest, but its Eurovision identity is specifically tied to Sweden.
A frequent error is to identify the entry by ABBA’s later global nationality or by the host country. ABBA were the performers, while Sweden was the country they represented; the contest itself was held in Brighton because Luxembourg had won the previous year.