You might recognize this guy from the new trailers for Pitch Perfect 2, but did you know that he's got his own YouTube channel?  It's pretty spectacular.  His series are some of the best.  Above is just one of the many vids he does called Auto-Tunes.  Clever.

I also love the series in which he tries to figure out English phrases and slang terms.  One of his most popular is the one below where he talks about his confusion over the term "party pooper".  Prepare to laugh.  Then hit subscribe.  You'll thank me later :)