The X Factor charity single, a cover of Rose Royce classic 'Wishing on a Star', was launched on Sunday, 27 November live on ITV. The single was performed on X Factor by the last sixteen contestants as well as JLS and One Direction.

All net proceeds will go to Together for Short Lives who work to ensure that all families of children unlikely to reach adulthood can make the most of their lives, with money raised going to local children and their families across the UK.

An appeal film shown on the night features the Lloyd family who have three lively boys diagnosed with Duchenne Muscular Dystrophy; ordinary people leading extraordinary lives.

Families like the Lloyds are supported by Together for Short Lives, the only charity representing the estimated 23,500 children. The charity was handpicked by Simon Cowell, who is a patron and has supported the organisation for a number of years.

Simon Cowell, patron of Together for Short Lives comments on his involvement in the charity, "I have seen first-hand the invaluable care and support they offer to thousands of young people and their families, so I am thrilled that the X Factor charity single this year will benefit this charity.

"Whenever I spend time with these children and families, I realise just how many challenges they face.  And when I visit the places that help them, like a children's hospice, it is clear to see that they are an incredible lifeline to the families that use them.  But they are more than just a building and a lot of support is also given in the home. And it's not just the kids, it's the parents and well brothers and sisters that need help.

Every one of these services relies on the public's generosity to maintain what they're doing, otherwise they don't exist - that's the reality. The X Factor charity single is an opportunity to help them."