Studio 666 (2005)

Synopsis: A rock band must deal with a vengeful spirit and the steady loss of band members while trying to record a debut album in the horror film STUDIO 666. Lead singer Cassidy is secretly obsessed with bandmate Neal, but when she suspects he doesn't love her, Cassidy commits suicide in a flamboyant manner. Looking to understand why, the band hires a psychic to search for answers. But this turns into a crucial mistake, as the psychic's powers awaken Cassidy's spirit, which seeks to eliminate her former band members. Can the band discover the means to stop the spirit, which is totally disrupting their shot at fame and fortune?     Source: RottenTomatoes.com