Birtha was one of the leading female rock bands performing during the early 1970's. The band consisted of four women: Shele Pinizzotto ( guitar), Rosemary Butler (bass), Sherry Hagler (keyboards) and Liver Favela (drums). All four members of the group performed lead vocals and harmonies. Liver was the last member to join Birtha in 1968. The group immediately started playing the club circuit and toured from California to Alaska.