Singer and writer Nick Cave says the death of his two sons made him realise that art was not everything, and that responsibility to his wife and family now drive him. The Australian musician told BBC Radio 4's Desert Island Discs that his wife and family are now the source of his creativity, and where he finds his joy.

Musician Nick Cave has opened up about the tragic deaths of his two sons, his 20-year heroin addiction and how he feels regret over his father's death when he was just 19