Buzz·Posted on Oct 15, 2013These Kids Singing The Dayman Song From "It's Always Sunny In Philadelphia" Will Melt Your Stupid Heart"You're a master of karate, and friendship for everyone!"by Justin AbarcaBuzzFeed StaffLinkFacebookPinterestTwitterMail In "The Nightman Cometh" episode of It's Always Sunny In Philadelphia, Charlie writes the best musical ever. EVER! About the Nightman... ... Who fights the Dayman. So when a group of kindergartners sing this song of triumph, for a moment, all is right in the world. View this video on YouTube Via youtube.com See?! Tap to play GIF Tap to play GIF