Roar - Single by Katy Perry

Katy Perry's new single opens with a 'Roar' - Los Angeles Times

Katy Perry – Roar (2013, CD) - Discogs

Katy Perry: the mouth that roars

Animal rights activists slam Katy Perry's Roar video - NZ Herald

Roar (song) - Wikipedia

Katy Perry Posts 'Roar' Teaser, Announces Single Release Date – Billboard

Single Review: Roar by Katy Perry

Katy Perry Roar Vinyl LP Remix Single Prism NEW Rare Promo Import Pink/Red Color - auction details

Katy Perry - Roar (Brillz Remix)

Katy Perry – Roar