Lys Assia was a Swiss singer who won the first Eurovision Song Contest in 1956. Assia was born in Rupperswil, Aargau, and began her stage career as a dancer, but changed to singing in 1940 after successfully standing in for a female singer.

The Eurovision Song Contest, often known simply as Eurovision, is an international song competition organised annually by the European Broadcasting Union. Each participating country submits an original song to be performed live and transmitted to national broadcasters via the Eurovision and Euroradio networks, with competing countries then casting votes for the other countries' songs to determine a winner.