Claim: Da Yooper's has released albums such as Yoopanese on July 4, 1986, Culture Shock on November 1, 1987, Camp Fever in August 1, 1988, and Yoop It Up in August 1, 1989.
Evidence: July 4, 1986 November 1, 1987 August 1, 1988 August 1, 1989