A great pop song might feel like magic, but it's actually melodic math (and the helping hand of prolific producer Max Martin) ...
The 90s and 2000s gave birth to some of the best and worst pop songs; here are four that are the best of the worst.
Exploring The Beatles' favourite songs from their 1966 masterpiece album 'Revolver', with tracks like 'Eleanor Rigby' and 'Taxman' standing out among the rest.