Katy Perry releases fourth teaser from 'Roar' (video)

SIDE NOTE: ...And did you see the awesome artwork for the single towards the end of the video? 

"Roar," co-written by Lukasz "Dr. Luke" Gottwald, debuts on Aug. 12.

To see the first one, click HERE.

To see the second one, click HERE.

To see the third one, click HERE.


Source via Katy Perry