What do Will Ferrell in Blades of Glory and Katy Perry at the Super Bowl have in common? The same outfit. Katy Perry opened her show with "Roar," atop a giant lion and in a costume designed with flames. As soon as we saw it, we knew it seemed familiar. Turns out, we were right. Take a look at a side-by-side comparison between Perry and Ferrell in the 2007 ice skating comedy, below.