Is music the greatest unifier? As the Eurovision Song Contest final nears, the BBC has imposed a ban on political comments. But some think politics is what the event is all about.
BBC tells Eurovision stars to avoid politics
Controversy: UK hopeful Mae Muller has not tried to hide her political opinions. Glossary
Eurovision Song Contest - A yearly international song competition between European countries, and recently Australia.
Scouse - A term for someone or something from Liverpool, UK.
Impinge - Have a negative effect on or encroach on something.
Left-wing - A range of beliefs that are the opposite of right-wing ideas. People on the political left usually believe in collective responsibility and the good of society. They often, though not always, support higher taxes and a more active, interventionist government.
Drag queen - A performer (usually a man) who puts on an exaggerated female act.
Metro mayor - A type of directly elected mayor in England.
Beethoven - German composer (1770 - 1827) whose intense, dramatic work revolutionised classical music.
French Revolution - The overthrow (and subsequent execution) of France’s king and aristocratic government in 1789. The revolution became infamous and influential worldwide.