Coinciding with the sad news that the Judicial Reviews on alleged hacker Gary McKinnon's case did not support his fight against extradition, the promo video for "Chicago/Change The World", the song in support of his cause, was completed and released this afternoon.

As many of you are aware, the song is a cover of the Graham Nash song, as a direct appeal to President Barack Obama. Featuring the vocals, keyboards, electric guitar and bass guitar of David Gilmour, the song also includes vocals from Chrissie Hynde, Bob Geldof, and Gary himself.

To see the promo video, which gives an interesting insight into the recording of the track, and to find out more about what the family intend to do about the latest setback, visit www.DavidGilmour.com where you'll find the video on the home page. Click here to download the single that requires an optional (and much needed) donation in aid of Autism charities - a worthy cause. You can also view the video via Youtube now: