"Yo Hanabi" (夜花火, Night Fireworks) is the fourth and final single by BeForU with Avex Trax and the group's fifth single overall. It was released on July 11, 2007. The single is available in both single CD edition and in a CD+DVD edition. This is BeForU's last single before the announcement that four members would be leaving the group.
Yohanabi is the correct pronunciation for this single. Note that in the lyrics, the words yoru and hanabi are separated by a comma and not a compound like in the title, which specifically had furigana over it reading "yohanabi" on the official website when it was released.