GLAD, formed in 1972 at West Chester State University in Pennsylvania, is a pioneering force in Christian pop/rock and a cappella music. Initially a progressive rock ensemble, they gained prominence with their intricate vocal harmonies and jazz-infused arrangements. Their 1988 release, "The Acapella Project," sold over 400,000 copies, solidifying their reputation. With over 1.5 million albums sold and a discography spanning 23 albums, GLAD continues to inspire audiences with their sophisticated sound and unwavering commitment to their faith. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Glad_%28band%29?utm_source=openai))