When you hire chronic Ferrari-hellion Justin Bieber to host an episode of "Saturday Night Live," not-funny things are bound to happen. Like, for instance, this sketch, which Bill Hader describes as "the greatest trainwreck ever" in his helpful blow-by-blow commentary. Favorite moment: Hader explains how the stage manager urged him to "keep going" after the diminutive teen idol was nearly crushed by a wall. Second favorite moment: Justin Bieber is gripped by fear as he is nearly crushed by a wall.

Twitter: @HItFixChris

A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.