Foo Fighters have shared a brand new song called 'Soldier' online.

The song is an outtake from the 'Concrete and Gold' sessions, but features on a new compilation that will raise money for Planned Parenthood in the USA.

Other artists on '7 inches for Planned Parenthood' include Sleater-Kinney, St. Vincent, Bon Iver and Bjork.

Hear 'Soldier' below: