The sleeve of Martina Topley-Bird's latest single 'Poison' which features as a B-Side the track 'Soldier Boy' was officially released yesterday. Soldier Boy had been previously officially announced to feature Gorillaz. The credits on the CD single reveal that Soldier Boy "contains elements from the sound recording "Snakes and Ladders" by Gorillaz". The writing credit for the song is Gorillaz-Martina Topley Bird-Roots Manuva-Leila Arab. See a fuller scan by clicking 'Read More' below.