Lamb was a San Francisco-based rock group. They tend to be remembered only for their appearance on the Fillmore: The Last Days concert album, where they were one of several non-star artists on a set dominated by bigger names like the Grateful Dead, Santana, and Jefferson Airplane. They also played at the Ribeltad Vorden in San Francisco. They issued three albums: A Sign of Change (Fillmore, 1970), Cross Between (Warner Bros., 1971) and Bring Out The Sun (Warner Bros., 1971 - Billed as: Barbara Mauritz & Lamb). Photographer Peter Olwyler created the album cover images used on "Cross Between" and "Bring Out the Sun."