kyou ichiban ureshikatta koto wo kimi ni tsutaetai
omoidashi warai shichai sou na koto ima sugu tsutaetai

omoikkiri DOJI tte minna ni warawareta koto mo
sho mo nai koto mo donna koto demo zenbu tsutaetai

Ah moshimo kimi ga utsumuite genki ga nai toki wa
tonari de watashi ga zettai warawasete agerunda kara

*sekai ichi no egao de zutto kimi no mama de ite
zettai akarui mirai zettai shinpainai
konkyo no nai jishin wa
mecha kucha kimi ga suki dakara
dekinai koto nantenai
So I'm HAPPY when you're HAPPY*

**mune ippai no kono omoi wo
nante nante kimi ni tsutaeyou
seiippai ookina koe de
OH! HAPPY, HAPPY!!
Yeah, yeah
mune ippai no kono ai wo
nante nante kimi ni tsutaeyou
seiippai ookina ai de
OH! HAPPY, HAPPY!!
Yeah, yeah**

kyou ichiban ganbatta koto wo kimi ni tsutaetai
kuyashikute namida ga dasou na koto ima sugu tsutaetai

yossha! yaruki ni naru toki mo mou DAME datte toki mo
massaki ni kimi no kao ukabu koto zenbu tsutaetai

Ah itsumo tochuu de kujikete shimai sou na toki mo
daijoubu datte zettai hagemashite kurerunda kara

sekai ichi no kotoba ga mahou kakete kureru kara
zettai akiramenai zettai muri ja nai
konkyo no nai jishin ga
mecha kucha afurete kuru kara
dekinai koto nantenai
So I'm HAPPY when you're HAPPY

mune ippai no fuan sae mo
nande nande fukitobaseru no
seiippai ookina koe de
OH! HAPPY, HAPPY!!
Yeah, yeah
mune ippai no arigatou wo
nante nante kimi ni tsutaeyou
seiippai ookina ai de
OH! HAPPY, HAPPY!!
Yeah, yeah

"I love you" "AISHITERU" ijou no
kotoba wa mou nai no kana?
How much is it? dore kurai?
kimochi wa doushitemo kazoerarenai

dakara GYUtto dakishimeru no
dakara tegami mo kaku no
dakara issho ni warau to
hitotsu ni naru Yeah

*repeat
**repeat

Lalala...
OH! HAPPY, HAPPY!!
Lalala...
OH! HAPPY, HAPPY!!
Yeah, yeah