AD (band)

AD
Also known as	Kerry Livgren/AD
Genres	Christian rock
Years active	1983 (1983)–1988 (1988)
Labels	Sparrow, CBS Associated, Kerygma, Numavox
Associated acts	Kansas, Kerry Livgren

Past members	Kerry Livgren Dave Hope Michael Gleason Dennis Holt Warren Ham

AD is a 1980s Christian rock band, featuring former Kansas members Kerry Livgren (guitar, keyboard, synthesizers, backing vocals) and Dave Hope (bass), former Bloodrock member Warren Ham (lead vocals, saxophone, flute, harmonica), who had toured as a sideman with Kansas in 1982, Michael Gleason (lead vocals, keyboards, guitar), who had replaced Ham as a touring member of Kansas in 1983, and Dennis Holt (drums).

Throughout the 1970s and into the early 1980s, Kerry Livgren had been guitarist, keyboardist, and principal composer for the successful American rock band, Kansas. During his tenure with the group, he had explored numerous eastern religions such as Hinduism and Buddhism. These themes often appeared in the lyrics to songs on early Kansas records such as Kansas, Song for America, and Masque.