 Complete the following phrase:  The Eurovision Song Contest is an annual international song competition held by the Eurovision broadcasting organisation since 1956, with participants representing primarily European countries. Each participating country submits an original song to be performed on live television and radio, then casts votes for the other countries songs to determine the winner. Since its inception, entry to the contest has been open to all members of the European Broadcasting Union EBU, a group also containing countries in North Africa and the Middle East. Before Moroccos 1980 participation, Tunisia at the 