Nunbusin achim haessare Buseuseu nuni tteojideon geu nal Ganjireoun neukkim useumi nawa Deullineun radiosori Hyanggeutan keopihyanggiwa hamkke Oneureun gibun joheun harureul sijakhae Gwaenseure utge doego Haengbokhago neomuna joheungeol Waenji joheun iri isseul geotman gata Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life Oh my happy day Gabyeoun balgeoreumeuro sesang sogeuro dallyeonagamyeon Barami pogeunhage nal gamssajugo Ttungttunghan ice cream ajeossi Pungseeon deun yeppeun kkomaaido Modu da haengbokhage harureul sijakhae Gireul geotdaga mannan hunnam Oppa naege mareul geonnewa Jeo hoksi yeollakcheo jom al su isseulkkayo Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life Oh my happy day Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life Oh oh happy day Oh oh happy smile Oh oh happy sound Oh oh happy life