In Brighton, United Kingdom, ABBA wins the 1974 edition of the Eurovision Song Contest with "Waterloo", the first of a joint-record seven Swedish wins.

Brighton is a seaside resort in the city of Brighton and Hove, East Sussex, England, 47 miles (76 km) south of London. Archaeological evidence of settlement in the area dates back to the Bronze Age, Roman and Anglo-Saxon periods. The ancient settlement of "Brighthelmstone" was documented in the Domesday Book (1086). The town's importance grew in the Middle Ages as the Old Town developed, but it languished in the early modern period, affected by foreign attacks, storms, a suffering economy and a declining population. Brighton began to attract more visitors following improved road transport to London and becoming a boarding point for boats travelling to France. The town also developed in popularity as a health resort for sea bathing as a purported cure for illnesses.

ABBA were a Swedish pop group formed in Stockholm in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. They are among the most renowned and commercially successful musical groups in history, ranking as one of the best-selling acts in the history of popular music.

The Eurovision Song Contest 1974 was the 19th edition of the Eurovision Song Contest, held on 6 April 1974 at the Dome in Brighton, United Kingdom, and presented by Katie Boyle. It was organised by the European Broadcasting Union (EBU) and host broadcaster the British Broadcasting Corporation (BBC), who staged the event after Compagnie Luxembourgeoise de Télédiffusion (CLT), which had won the 1973 contest for Luxembourg, declined hosting responsibilities as it had staged the competition in 1973. The BBC took over as host after Televisión Española (TVE), which had placed second for Spain in 1973, declined the offer when approached, with the EBU ultimately choosing the BBC over other bids from the Israel Broadcasting Authority (IBA) and the BBC's commercial rival ITV. This was the fourth time that the BBC had staged the contest after another broadcaster declined – following the 1960, 1963 and 1972 contests – and the fifth time overall including 1968.