Abba's Waterloo has been named the greatest Eurovision song of all time by BBC ... to honour all 41 songs which would have competed this year. Some of this year's songs would have been eliminated ...

"Puppet on a String" was also the first Eurovision song to top the charts - it held onto that spot for three weeks! Sandie has been making hits since she was 17 - she had her first number 1 in 1964.