KATY PERRY Prism (2013 US limited edition 16-track CD album housed in an iridescent digipak picture sleeve which contains special seed paper with the triangular PRISM logo on the front and PLANT THIS PRISM - SPREAD THE LIGHT -KATY written on the back B001921502) Roar Legendary Lovers Birthday Walking On Air Unconditionally Dark Horse This Is How We Do International Smile Ghost Love Me This Moment Double Rainbow By The Grace Of God SpiritualIt Takes Two Choose Your Battles