<P> In 2005, the EBU had agreed with the Danish broadcaster, DR, to produce a programme to celebrate the 50th anniversary of the contest . The show, entitled Congratulations: 50 Years of the Eurovision Song Contest after Cliff Richard's 1968 entry for the United Kingdom, was held in Copenhagen, and featured a competition among fourteen of the most popular songs from the last 50 years of the contest . A telephone vote was held to determine the most popular Eurovision song of all - time, which was won by the ABBA song "Waterloo" (winner for Sweden in 1974). The event was hosted by the 1997 Contest winner for the United Kingdom, Katrina Leskanich, and Latvia's representative on its debut at the 2000 Contest, Renārs Kaupers . </P> <P> In 2015, the EBU had decided again to commemorate the contest and agreed with the United Kingdom's broadcaster, BBC, to produce a show for the 60th anniversary of the contest, after evaluating several proposals from member broadcasters in regards to the anniversary celebration beyond the 2015 Contest in May . The event, entitled Eurovision Song Contest's Greatest Hits, took place at the Eventim Apollo in Hammersmith, London and featured fifteen acts from thirteen countries in the official line - up . Unlike the 50th anniversary show in 2005 which was broadcast live, this event did not feature a competition and was pre-recorded to be televised across Europe and other EBU members on various dates schedule by the respective broadcasters . The event was hosted by the British commentator for Eurovision, Graham Norton, and the host of the 2013 and 2016 Contest, Petra Mede . </P> <P> The contest has been the subject of criticism regarding both its musical and political content . For example, on rare occasions, certain countries have been booed when performing or receiving points, especially when being given by a neighbour country . Most recently in 2014 and 2015, Russia was heavily booed when it qualified for the final and received high points . The reason for the booing is considered to be due to the Russian military intervention in Ukraine and opposition to the country's policy on LGBT rights . </P> <P> Because the songs play to such a diverse supranational audience with contrasting musical tastes, and countries want to be able to appeal to as many people as possible to gain votes, this has led to the music of the contest being characterised as a "mishmash of power ballads, ethnic rhythms and bubblegum pop". This well - established pattern, however, was notably broken in 2006 with Finnish metal band Lordi's victory . As Eurovision is a visual show, many performances attempt to attract the attention of the voters through means other than the music, notably elaborate lighting sequences and pyrotechnics; sometimes leading to bizarre on - stage theatrics and costumes, including the use of revealing dress . </P>

What does the winner of the eurovision win