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A source told Britain's Daily Mirror newspaper: "Madonna thinks Mike is amazing and asked if she could have a private screening of his documentary 'Tyson' while she was in the Riviera. "Mike agreed immediately and offered to do a favour in return.

He has promised to fly with her to Malawi this summer to promote awareness of children with AIDS there." Madonna, 49, produced and narrated the film 'I Am Because We Are', which highlights the plight of Malawi's one million orphans who suffer from the deadly disease.

Tyson's biographical feature 'Tyson' documents his colourful past including his drug-taking, the infamous moment when he bit off part of opponent Evander Holyfield's ear during a bout and his incarceration for the rape of a beauty queen, an allegation he has always denied.