Foo Fighters recently performed both new songs "Waiting on a War" and "No Son of Mine" on Jimmy Kimmel Live. You can check 'em out right now and pre-order Foo Fighters' new album Medicine at Midnight here. Pre-orders are available here.
Speaking on "Waiting on a War", Grohl said it's about his daughter being concerned about the state of the world.
"Last fall, as I was driving my daughter to school, she turned to me and asked, 'Daddy, is there going to be a war?' My heart sank as I realized that she was now living under the same dark cloud that I had felt 40 years ago," he said.
"I wrote 'Waiting On A War' that day. Every day waiting for the sky to fall. Is there more to this than that? Is there more to this than just waiting on a war? Because I need more. We all do. This song was written for my daughter, Harper, who deserves a future, just as every child does."