20 March 2014 Last updated at 17:05 GMT

Sport Relief: Behind the scenes of England's World Cup song

BBC Sport Relief joins forces with Gary Barlow and many other familiar faces to produce the 2014 World Cup song for England.

The cover of Take That's song 'Greatest Day' will be officially launched on Friday, 21 March, and features England football legends Sir Geoff Hurst, Gary Lineker, Glenn Hoddle, David Seaman, Michael Owen, Martin Keown, Dion Dublin, Gary Pallister and Carlton Palmer.

Pop stars Katy B, Eliza Doolittle, Kimberley Walsh, Emma Bunton and Melanie Chisholm also lend a helping hand and join the star-studded chorus.

The video will make its debut on Sport Relief night on 21 March.