Together, Roger Greenaway and Roger Cook became one of the most prolific hitmaking duos of their generation. Here, Greenaway recalls writing the No.2 hit You’ve Got Your Troubles, the classic song that kick-started it all...

I can’t tell you how many doors this song opened. Originally, I was in a group called The Kestrels – we had even toured with The Beatles but it was terrible. We were paid double fees to go on before them and it was soul-destroying ...