Killer B

Killer B is a song sung by Rin Kagamine, Miku Hatsune, IA Akasaka, Gumi Megpoid, and Luka Megurine. It is the thirty-seventh track, the thirty-eighth track, the thirty-ninth track, the fortieth track, and the forty-first track in Other Vocaloid Songs 55: Making A Comeback Volume 3.