Celebrities from across the UK are taking part in the football match, which is taking place in May at Birmingham City Football ground.
The match, which has been organised by the mother of Harry Moseley, is intended to raise funds and awareness of Harry's work, which has now helped many people with similar conditions.
Lee Latchford-Evans from pop group Steps said Harry was a special boy and his work must continue.
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An investigation has been launched into the care of a three year-old boy at Stafford Hospital.
When you meet Malala Yousafzai it is hard to imagine such a shy, softly spoken girl addressing world leaders in the spotlight.
Nobel prize-winner and campaigner Malala Yousafzai speaks to ITV News about her political ambitions and her new Birmingham accent.