Bloodrock initially formed in Fort Worth in 1963, under the name the Naturals. This first lineup featured Jim Rutledge – drums/vocals, Nick Taylor (1946–2010) – guitar/vocals, Ed Grundy – bass/vocals, and Dean Parks – guitar. They released their first single in 1965 "Hey Girl" b/w "I Want You" (Rebel MME 1003). Shortly thereafter they changed their name to Crowd + 1 and released three more singles: "Mary Ann Regrets” b/w "Whatcha Tryin’ to Do to Me" (BOX 6604), "Don’t Hold Back" b/w "Try," and "Circles" b/w “Most Peculiar Things."