Will Ferrell [1]'s Alex Trebek impression was one of the most memorable things about his stint on Saturday Night Live [2], and he again donned the silver mustache for the show's 40th anniversary celebration. It feels like a warm, weird hug from the early 2000s. Jim Carrey [3] played Matthew McConaughey [4], Darrell Hammond dusted off his Sean Connery impression, and Norm MacDonald returned as Burt Reynolds. It's simply wonderful. Watch below, and go behind the scenes of SNL's anniversary show with the best social pictures [5]!