Katy Perry previews two new tracks ahead of VMA performance

Katy Perry has unveiled snippets of two new tracks, Walking On Air and Dark Horse.

Both expected to be appear Perry’s forthcoming LP Prism, the tracks have been shared to allow fans to select which they would like as the next single (the follow-up to storming pop number Roar).

Take a listen to both the new tracks below, and click the iTunes link to preorder Prism .

Katy Perry – Walking On Air

Katy Perry – Dark Horse