Does anyone know some songs about fallen/shadow angels?

tu can try Nightwish's "Angels Fall First", for example. o then For My Pain's "Dancer in the Dark". They're really beautiful songs, both of them.
Nightwish is a Finnish symphonic metal band, and For My Pain is a gótico metal band. It's Finnish too.
"Dancer in the Dark" isn't maybe about a shadow angel, but the song is telling a tale of an ángel dancing in the dark. I hope tu like them. ^^