Katy Perry: Firework (American Idol Finale Duet with Leah Marlene)

Show dates: https://www.katyperry.com/tour/ Follow Katy Perry: Website: http://katy.to/WebsiteYD​ Instagram: http://katy.to/InstagramYD​ Twitter: http://katy.to/TwitterYD​ Facebook: http://katy.to/FacebookYD​ Weibo: http://katy.to/WeiboYD​ VK: http://katy.to/VKPageYD​ ❤️ Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD ❤️ Katy Perry Essentials on Apple Music: http://katy.to/AMEssentialsYD ❤️ Watch your favorite Katy videos on YouTube: http://katy.to/MusicVideosYD