The one and only Crazy Amy Sedaris from 2001 to 2015 on the david letterman show. Amy Sedaris Appearences year after year, getting crazier each time.\rbr\rbrThe one and only Crazy Amy Sedaris from 2001 to 2015 on the david letterman show. Amy Sedaris Appearences year after year, getting crazier each time.\rbr\rbr\rbr\rbrScarlett Johansson only 13 year old on her first appearance on the david letterman show. All Scarlett johansson appearances on the david letterman show from .