"Siren" is a single released by Nana Kitade under the pseudonym Ruby Gloom. The title track "Siren" is being used as the theme song for the Japanese release of the Canadian animated series Ruby Gloom. The limited edition of this single comes with a DVD. The single was produced by former Megadeth guitarist, Marty Friedman, who also produced her reworks of "Kesenai Tsumi", and Alice From her "Berry Berry Singles" Album.