You might know Keith Allen as an actor and TV presenter or the co-writer behind two hit football anthems, while two of his children have also found fame, popstar Lily and Game of Thrones actor Alfie.

Growing up, Keith Allen was a troublemaker; he spent time in borstal, was thrown out of drama school, and even got sent to prison.

Now in his 70s, as he prepares to star in a new musical called Rehab, Krishnan Guru Murthy has been talking to him about the moments that have made up his rollercoaster life and career.