"Clockwork Nightmares" is a album by ClockworkSinger. It contains 7 original songs sung by Sweet Ann, Clara, Bruno, MAIKA, MEIKO, KAITO, GUMI, AVANNA, OLIVER, SONiKA and Hatsune Miku. A crossfade of the album could be heard here. This album was originally released with 5 off vocals of the tracks, however they were later removed of the tracklist.