"Waterloo" was one of fourteen Eurovision songs chosen by fans to compete in the "Congratulations" 50th anniversary special in 2005. The contest was broadcast on SVT with commentary by Pekka Heino. It was the only Swedish entry featured in the show, although several Swedish entrants were featured (including Swedish winners Carola and Richard Herrey of Herreys). "Waterloo" appeared seventh in the running order, following "Nel blu dipinto di blu" by Domenico Modugno and preceding "Fly on the Wings of Love" by the Olsen Brothers. At the end of the first round, it was announced that "Waterloo" had advanced to the second round along with four other songs. It was later revealed that "Waterloo" won the first round with 331 points. This included 18 sets of the maximum twelve points, including from Sweden (who, unlike in usual contests, were allowed to vote for their own entry). Coincidentally, the first proper competing Eurovision song to receive a record 18 top marks was a Swedish entry: "Euphoria" by Loreen, the winning song of the 2012 contest.