Rylan Clark-Neal narrates a guide to all things Eurovision and takes a sideways look at the greatest singing contest on the planet. The A-Z of Eurovision features all the disasters, the costume changes and memorable musical moments from 65 years of Eurovision.

The Eurovision Song Contest is an international song competition, organised annually by the European Broadcasting Union (EBU) and featuring participants representing primarily European countries. Each participating country submits an original song to be performed on live television and radio, transmitted to national broadcasters via the EBU's Eurovision and Euroradio networks, with competing countries then casting votes for the other countries' songs to determine the winner.