Hey boys, no more worries, put on a smile for me Hey girls, no pain no gain is what they say, right Ok, no need to stress, ok, brush it off your chest Through the rain there's a brighter day, don't worry be happy Eojireo wo jukgesseo mwoga geuri mari manha Mom seori seori chyeo jineun inal jombwa Nuga meonjeo geuman jom hae jogeum man chama gwaen chanha I'm sorry, sorry nuga meonjeo malhaebwa Ooh, boys, ooh, girls, be happy, hey, be happy, hey Ooh, boys, ooh, girls, be happy, hey, be happy, ha Ireo kung jeoreo kung mwoga geuri mari manha Oh, utja utja geunyang useo beorija Iraera jeoraera apeun mareun haji mara Oh, utja utja geunyang useo beorija Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Hey boys, gogae sugiji malgo geunyang keuge useobwa Hey girls, jjajeung nago dap daphaedo it's gonna be alright Smile for me, alright, smile for me, alright Through the rain there's a brighter day, don't worry be happy Saram deuri moduga apeudago ureodo Oh, dori dori jal dwelgeoya gwaen chanha Apeudago datumyeon jeongmari geon ani janha Nae soni soni anirago hajanha Ooh, boys, ooh, girls, be happy, hey, be happy, hey Ooh, boys, ooh, girls, be happy, hey, be happy, ha Ireo kung jeoreo kung mwoga geuri mari manha Oh, utja utja geunyang useo beorija Iraera jeoraera apeun mareun haji mara Oh, utja utja geunyang useo beorija Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Ha, ha, ha, ha, ho, ho, ho, ho, geunyang utja Don't worry, worry, don't, don't worry baby Be happy, hey, be happy, hey Don't worry, worry, don't, don't worry baby Be happy, hey, be happy, ha Ireo kung jeoreo kung mwoga geuri mari manha Oh, utja utja geunyang useo beorija Iraera jeoraera apeun mareun haji mara Oh, utja utja geunyang useo beorija Can you feel me? Ireo kung jeoreo kung mwoga geuri mari manha (Hey, listen everybody, c'mon!) Oh, utja utja geunyang useo beorija Iraera jeoraera apeun mareun haji mara Oh, utja utja geunyang useo beorija