A San Francisco-based R&B band originally formed by guitarist Larry Field as the "New Invaders" in the wake of the Summer of Love, Cold Blood had the key elements of strong female vocalist, a fine guitarist, and a powerful horn section. After successful gigs at Golden Gate Park and at the ~Fillmore, they were signed by impresario Bill Graham to his new San Francisco Records label, on which they released their self-titled debut in 1969.