Send a letter to your favorite musician Jack Nix wrote this letter to Foster The People

Hey guys. I'm making a documentary, and need to have an animation scene. The documentary is non-commercial film and will be on youtube. I was wondering if I could have permission to use
"Don't Stop (color on the walls) " for the stop motion scene.
My email is anythingbutordinaryfilms@gmail.com.
Please Respond,
Jack Nix