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Koji Wada is best known for “Butter-Fly,” the opening theme of the anime Digimon Adventure, which was both his debut single and his signature song.
Due to two hiatuses for medical treatment and his comebacks thereafter, he was also known as the “Immortal Butterfly of Anisong.”
Even after his passing in 2016, his songs and the way he lived continue to be talked about.
Here, we present a ranking of Koji Wada’s most popular songs for karaoke.
Koji Wada’s Most Popular Karaoke Songs Ranking [2025]
Butter-FlyKoji Wada1rank/position
The game “Digimon” still enjoys enduring popularity today.
At first, the series had a strong image as a Bandai handheld electronic game, but its popularity really took off after it was adapted into an anime.
Koji Wada’s “Butter-Fly” is known as the theme song for the anime “Digimon Adventure,” and it is still remembered as a classic anime song.
One of the charms of this piece is its lively, quintessentially anime-style melody.
Its straightforward and exhilarating tune—something not often heard in recent anime songs—likely captured the hearts of men in their 30s who were kids at the time.
Butter-Fly~tri version~Koji Wada2rank/position
The one and only “Immortal Butterfly”: Koji Wada’s soulful masterpiece and his final work.
This is his last rendition of Butter-Fly (2015 rearranged version), recorded after repeated hospitalizations and battles with illness.
Due to his condition, his voice changed a little, but it became gentle, refreshing, and truly beautiful.
To you, who were once one of the ‘Chosen Children.
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