"Kingyo Hanabi" (金魚花火; Goldfish Fireworks) is Ai Otsuka's fifth single.

It became the theme song of the Japanese television program "Super TV".

50,000 limited edition copies were sold which included a picture book drawn by Otsuka.

'Kingyo Hanabi' is a simple video that shows Otsuka singing underwater and on a small island during dawn/dusk.

Otsuka sits on a veranda looking at a man and reaches out tentatively, but he moves away before she can hold his hand.