The Foo Fighters have released a surprise EP in memory of those killed in the Paris terrorist attacks.

Dave Grohl

Dave Grohl

The 'Learn To Fly' hitmakers - who were forced to cancel the rest of their world tour after the atrocities in the French capital - have dropped the free download, 'Saint Cecilia'.

In a heartfelt letter on their official website, frontman Dave Grohl writes: "Tonight, Let me begin with a preface to a letter I wrote a few weeks ago from my hotel room in Berlin while on our final tour for this album. I felt the need to write this foreword in light of the heartbreaking tragedies of Nov. 13th, as this project has now taken on an entirely different tone. As has everything, it seems...

"The Saint Cecilia EP was put into motion back in October of this year as a celebration of life and music. The concept being that, as our world tour drew to a close this week, we wanted to share our love of both with you in return for everything you have given us. (sic)"

The 46-year-old musician also revealed he hopes the band's music will bring a "little light into this sometimes dark world".

He added: "Now, there is a new, hopeful intention that, even in the smallest way, perhaps these songs can bring a little light into this sometimes dark world. To remind us that music is life, and that hope and healing go hand in hand with song. That much can never be taken away.

"To all who were affected by the atrocities in Paris, loved ones and friends, our hearts go out to you and your families. We will return and celebrate life and love with you once again someday with our music. As it should be done."