VIDEO: Cory Monteith Talks Getting Slapped in Glee Season 3, Episode 6 — It Was a Surprise! Tweet November 17, 2011 by Addison Walker Related: Glee, Cory Monteith , Naya Rivera , Season 3 Episode 6 Credit: Naya Rivera and Cory Monteith discuss the behind-the-scenes decision to slap him by surprise on Glee Season 3, Episode 6 "Mash Off."
