Music·Posted on Jun 3, 2014Zach Galfianakis And Jenny Lewis Sing "Camptown Races"Alongside Scott Auckerman on this week's Comedy Bang Bang.by Whitney JeffersonBuzzFeed StaffLinkFacebookPinterestTwitterMail But why is Zach missing an arm? Tap to play GIF Tap to play GIF And why is Jenny Lewis always so damn cute? Tap to play GIF Tap to play GIF I guess we'll never know.