Eurovision has a reputation for weird and wacky music, outrageous costumes, and loyal, dedicated fans. The contest, now in it's 67th year, often sees the very best of European musical talent - and sometimes, it doesn't.
After two poptastic semi-finals, 26 acts will take to Europe's biggest stage with millions of music fans expected to vote on who they wish to see crowned music champion of the event. Votes are cast by a jury of music experts and by members of the public, with the vote totals combined into on final score.
But it hasn't always been this way - this combined voting method is the 13th iteration of Eurovision's voting rules since the contest began in 1956. During the first ever contest, juries were even allowed to vote for their own country - something which has not been permitted since.
