"Hohoemi no Bakudan" (Japanese: 微笑みの爆弾, Hepburn: Hohoemi no Bakudan, The Smile Bomb) is a 1992 single recorded by Japanese singer-songwriter Matsuko Mawatari.

This is her second single from her second album Nice Unbalance.

[1] "Hohoemi no Bakudan" in 2004 was, however, charted together with the song "Unbalance na Kiss wo Shite" (アンバランスなkissをして, Unbalanced to Kiss) by Hiro Takahashi.

[1][2] B-side of the single features a song from her first album Aitashi Gakunari Gatashi (逢いたし学なりがたし), "Homework ga Owaranai" (ホームワークが終らない, Hōmuwāku ga Owaranai, The Homework's Never Done)".

This song also became the opening theme of the anime series YuYu Hakusho and is included on its compilation album Sai-Kyou Best Selection Album.