He's back with a vengeance! After a year away, Ed Sheeran dropped two brand new songs last week that are already gaining popularity on the radio and online (check out Ed's hot, new music video for "Shape of Me"). But with his self-induced exile, what did Ed miss from the world of pop culture? To test his knowledge, Ed does the "Brain Freeze Challenge" with YouTube star Caspar, but does he really not known these answers? Too funny and too freezing!