"Cannonball" is the opening track from Supertramp's 1985 album Brother Where You Bound. It was written and sung by keyboardist Rick Davies entirely in the chord of G. Davies stated in an interview "I did it simply to see if it could be done". The track became Supertramp's last US Top 40 single to date, peaking at number 28 on the Billboard singles charts in the spring of 1985. It also crossed over to the dance charts, peaking at number nine.