Kanji

ドンとなった花火だ　きれいだな
空いっぱいに　ひろがった
しだれやなぎが　ひろがった

ドンとなったなんびゃく　赤いほし
いちどにかわって　あおいほし
もいちどかわって　きんのほし

ドンとなった花火だ　きれいだな
空いっぱいに　ひろがった
しだれやなぎが　ひろがった

Romaji

don to nat ta hanabi da kirei da na
sora ippai ni hirogat ta
shidare ya nagi ga hirogat ta

don to nat ta nan byaku akai hoshi
ichidoni kawat te aoi hoshi
mo ichido kawat te ki n no hoshi

don to nat ta hanabi da kirei da na
sora ippai ni hirogat ta
shidare ya nagi ga hirogat ta

Translation

The fireworks opens with a loud noise
Filling the empty sky with its beauty
Spreading like a weeping willow

After the bang hundreds of red stars appear
Who turn into blue stars all of a sudden
Changing into golden stars after a while

The fireworks opens with a loud noise
Filling the empty sky with its beauty
Spreading like a weeping willow