Letra Happiness de SuJu original
Sungmin>
Hanbuhndo nan nuhreul ijuhbonjuhk uhbsuh
Ojik geudaemaneul saenggakhaenneunguhl
Hankyung>
Geuruhn nuhneun mwuhya nal ijuhdduhn guhya
Heechul>
Jigeum nae noonesuhn noonmool heulluh baeshingam
Shindong>
Nuhl chajagalgga saenggakhaessuh
Nan nan jal moreugessuh
Ee sesangi dolgoinneun jigeum
Nan nuh bakke uhbji
Eunhyuk>
Halmaree uhbsuh gal soodo uhbsuh
Noonmooldo uhbsuh neukkimdo uhbsuh
Ne ape suh inneun nal barabwa
Shindong & Eunhyuk>
Nuhl wihae sarainneun nal
Donghae>
Yaksokdwen shigani wassuhyo geudae ape
Issuhyo dooryuhwoome woolgo ijjiman
Siwon>
Noonmooreul dakkajoouhssuhyo geuddae
Nae sonjabajjyo iruhnalguhya
Eeteuk>
Hamkke haejoon geudae ege haengbogeul
Sungmin>
Noongamgo geudael geuryuhyo mamsok
Geudael chajajjyo nareul balkhyuhjooneun
Bichi boyuh yuhngwuhnhan
Kangin>
Haengbogeul nohchil soon uhbjyo geudae
Na boinayo nareul boolluhjwuhyo geudaegyuhte
Ryeowook>
Isseulgguhya nuhreul saranghae
Hamkkehaeyo geudaewa yuhngwuhnhee
Heechul>
Hanbuhndo nan nuhreul ijuh bonjuhk uhbsuh
Ojik geudaemaneul saenggakhaenneunguhl
Kibum>
Geuruhn nuhneun mwuhya nal ijuhdduhn guhya
Yesung>
Nae noonesuhn noonmool heulluh baeshingam
Sungmin>
Yaksokdwen shigani wassuhyo geudae ape
Issuhyo dooryuhwoome woolgo ijjiman
Kangin>
Noonmooreul dakkajoouhssuhyo geuddae nae
Sonjabajjyo iruhnalguhya
All>
Hamkke haejoon geudae ege haengbogeul
Donghae>
Noongamgo geudael geuryuhyo mamsok
Geudael chajajjyo nareul balkhyuhjooneun bichee
Boyuh yuhngwuhnhan
Eeteuk>
Haengbogeul nohchil soon uhbjyo geudae
Na boinayo nareul boolluhjwuhyo geudaegyuhte
Yesung>
Isseulgguhya nuhreul saranghae
Hamkkehaeyo geudaewa yuhngwuhnhee
Heechul>
Juh parangsaedeuri juhnhaejooneun
Haengbogiraneun guh
Ryeowook>
Neul woori gyuhte gakkai inneunguhjyo
All>
Noongamgo geudael geuryuhyo mamsok
Geudael chajajjyo nareul balkhyuhjooneun bichi boyuh
Yuhngwuhnhan haengbogeul nohchil soon uhbjyo
Geudae na boinayo nareul boolluhjwuhyo
Uhnjerado geudae maeumeul yuhruh boayo
Apen naega issuhyo
Nareul boolluhjwuhyo geudae gyuhte
Ryeowook>
Isseulgguhya nuhreul saranghae
All>
Hamkkehaeyo geudaewa yuhngwuhnhee