Sister was an American heavy metal band formed in Los Angeles in 1976.
Lawless had previously played guitar with the New York Dolls for a handful of live shows before that band broke up in 1976.
Though the band never officially released any material, Sister has obtained some measure of notoriety for pioneering the fusion of occult symbology such as the pentagram with a theatrical heavy metal performance inspired by Alice Cooper.
London has become well known for having several members in its ranks during its three-year existence who would go on to major success later in the 1980s, such as Sixx, Lawless, Izzy Stradlin, and Fred Coury.
Future Guns N' Roses drummer Steven Adler auditioned for London but was turned down.