We all have our favourite songs; perhaps it was a childhood favourite, or a track associated with a particular fond memory. Perhaps it was something that taught you about a different way of life, or a different way of looking at things - either way, it's a deeply personal choice which no-one should judge.
That's not going to stop us laughing at Cristiano Ronaldo's selection though.
Enjoy our selection of celebrities' favourite songs; Bob Dylan and The Clash appear twice and David Cameron's gets the award for most appropriate selection.
Images: All Star/Rex