Holy crap someone got Kyle MachLachlan to do a Twin Peaks style Harlem Shake. It's.. hurting... our brains. So much amazing and so much terrible wrapped into one tiny video. Hate it or love it, you won't be able to stop watching it.
Misha Collins on What Made Supernatural Successful
For those unaware, the Harlem Shake is a dance. For more information see here, here and here.
H/T to Russ Fischer