Jack Osbourne on his Ozzy documentary
As the lead singer of heavy metal band Black Sabbath, Ozzy Osbourne was famous for his wild behaviour both on and off the stage.
Now his son, Jack Osbourne, has made a documentary about the singer's extraordinary life.
Jack Osbourne told BBC Breakfast that the film is an honest portrayal of his father which includes past battles with addiction.
God Bless Ozzy Osbourne is out on DVD from the 14 November