Katy Perry PRISM Album Sampler

PRISM streaming album preview, download now on iTunes: PRISM Track List: 0:06 Roar 1:36 Legendary Lovers 3:06 Birthday 4:36 Walking on Air 6:06 Unconditionally 7:36 Dark Horse 9:06 This Is How We Do 10:36 International Smile 12:06 Ghost 13:36 Love Me 15:06 This Moment 16:36 Double Rainbow 18:06 By The Grace of God 19:36 Spiritual 21:06 It Takes Two 22:36 Choose Your Battles Follow Katy: