Australia is the latest country to be welcomed

As part of Eurovision's 60th anniversary celebrations, the organisers have invited one more country to take part - Australia.

Yes, it's not exactly Europe (not even close), but the country has been given this one-off opportunity because of their unwavering support and fondness for Eurovision over the years.

They'll be represented by Guy Sebastian - former winner of Australian Idol and a current X Factor Australia judge - with the song Tonight Again.

So, what happens if Australia wins? No one is quite sure, although the chance of that happening is unlikely thanks to the highly territorial voting every year.

From Nigella's debut to Australia's inclusion, everything you need to know about the Eurovision 2015