Popnography
WATCH: Oscar Isaac Performs Folk Version of Katy Perry's "Roar"
WATCH: Oscar Isaac Performs Folk Version of Katy Perry's "Roar"
![Oscarrotator](https://www.out.com/media-library/oscarrotator.jpg?id=32805366&width=1200&height=710)
Mover over Perry, the scruffy Inside Llewyn Davis star will take it from here
December 11 2013 10:10 AM EST
February 05 2015 9:27 PM EST