Electro Velvet
Bianca Nicholas and Alex Larke of UK 2015 Eurovision entry Electro Velvet Getty

There are just two days to go before the 60th annual Eurovision Song Contest, when 20 countries will battle it out for the top spot.

As we await the final on Saturday 23 May, here are 20 things you might not know about the competition – from the oldest contestant to the entry in a made-up language...

Eurovision Song Contest 2015
Conchita Wurst performs Rise Like A Phoenix after winning the Eurovision Song Contest 2014 in Copenhagen Getty
Ruslana Eurovision
Ruslana of Ukraine performs during the semi-finals for the 2004 Eurovision Song Contest Getty
Abba Eurovision
Abba performs Waterloo during the the Eurovision Song Contest 1974 in Brighton Getty