studio assistance (Robert Lang Studios) Kabir Hermon – studio assistance (The Magic Shop) John Lousteau – studio assistance (Atomic Sound, Studio 6A, and Preservation Hall); backing vocals on "In the Clear" Gavin Lurssen – mastering Matt Mangano – studio assistance (Southern Ground Studios) Greg Norman – studio assistance (Electrical Audio) Jon San Paolo – studio assistance (Electrical Audio) Matthias Schneeberger – studio assistance (Rancho De La Luna) Chris Shurtleff – studio assistance (The Magic Shop) Ben Simoneti – studio assistance (Southern Ground Studios) Butch Vig – producer Don Zientara – studio assistance (Inner Ear Studios) Gersh Gershunoff - Drum Tech Artwork Stephan Martiniere – cover illustration Ringo – photographs Andrew Stuart – photographs Morning Breath, Inc. – art direction and design Charts Weekly charts Year-end charts Certifications References External links 2014 albums Albums produced by Butch Vig Foo Fighters albums RCA Records albums Concept albums