Kanye West's mother was so concerned about her son's welfare when he started listening to rap music she followed him to concerts just to check he wasn't being led astray.

His mother DONDA, a retired professor, feared her talented son was getting into a world of drugs and crime, so she used to hide at the back of concerts and spy on him.

She recalls, "He maybe doesn't know this, but I was at a lot of those shows, watching him."