When was the american rock band hosted at Kongreßhalle active? 
Kongreßhalle:  As a music venue it hosted artists such as The Doors, Creedence Clearwater Revival, Uriah Heep, The Firm, Tina Turner and Procol Harum. Creedence Clearwater Revival: Creedence Clearwater Revival, often informally abbreviated to Creedence or CCR, was an American rock band active in the late 1960s and early 1970s.
late 1960s and early 1970s