We all know who celebrities are once they cross that threshold and become undoubtedly famous. Regardless if its because of good publicity or bad, we don't always uncover where it all began for these big names.
True story: I haven't been able to stop listening to Katy Perry's Dark Horse'. I sing it at the top of my lungs and I dance like I think I know how to dance. But this video of a guy singing the song in 20 different styles is something amazing.