[1] They formed in Los Angeles, California, with original members Michael "Diamond" Gargano (bass), Jeff Poole (drums), Roger Romeo (guitar), Rick Sanford (vocals) and Michael Prince (keyboards and guitar) and were named for a 1920s gangster of the same name.
In 1990 they released a new album on Metal Blade records and the lineup was Rick Sanford (vocals), Roger Romeo (lead guitar), Michael Prince (keyboards and guitar), Dusty Watson (drums) and Mike Christie (bass).
In 2005, original frontman Rick Sanford was replaced by ex-Montrose and Wild Horses vocalist John Levesque, and the band released the album, Diamonds Are Forever, in 2006.
The band still does the occasional gig in the Los Angeles area and at least once a year in San Antonio, Texas where they are still popular, the result of being a favorite of influential disc jockey Joe "the Godfather" Anthony (1940–1992).
[3] In 2019, Legs Diamond acquired a new lead singer, Keith England, and are currently working on a new album and eventually touring again.