Ruby Gloom is a TvCartoon from Canada. She's a girl with some different friends (Misery, Skull Boy, Scardey Bat, Poe; Mr. Buns, Frank & Len, Iris, Boo Boo and finally her lil' cat, Doom Kitty). In the cartoon, Misery, Poe and Frank & Len have a band, and his songs usually talk about the darkness. In 2008, Nana Kitade (北出菜奈) released the single サイレン (Siren) under the name Ruby Gloom. The title track is being used as the theme song for the Japanese release of the animation. The single was produced by former Megadeth guitarist, Marty Friedman.