MTV & Pepsi revealed two new song titles from Katy Perry's 'Prism' due 10/22:
"Dark Horse" & "Walking on Air"
One of the songs will serve as a promotional single from the album.
Snippet of the songs will be unlocked this weekend, according to Billboard.
Tweet with #KATYNOW to unlock
song titles, lyrics and sneak peeks from the new album! Pepsi is then letting YOU decide which of Katy’s new songs will be released early before her album drops on 10/22!
http://katyperry.pepsi.mtv.com/