continued to feud through the summer and eventually Flair reformed The Four Horsemen, with the surprise addition of longtime rival Sting, to combat Funk's J-Tex Corporation. This led to an "I Quit" match at Clash of the Champions IX: New York Knockout which Flair won. Flair then kicked Sting out of The Four Horsemen upon his challenge for the NWA World Heavyweight Championship, resulting in a revived feud between the two. On July 7, 1990, Flair dropped the title to Sting at The Great American Bash. After being unmasked as The Black Scorpion at Starrcade in 1990, Flair regained the title from Sting on January 11, 1991. Subsequent to this title win, Flair was recognized by WCW as the first WCW World Heavyweight Champion, though he was still also recognized as NWA World Heavyweight Champion. On March 21, 1991, Tatsumi Fujinami defeated Flair in a match in Tokyo at the WCW/New Japan Supershow. While the NWA recognized Fujinami as their new champion, WCW did not because Fujinami had backdropped Flair over the top rope in a violation of WCW rules. On May 19, 1991, Flair defeated Fujinami at SuperBrawl I in St. Petersburg, Florida to reclaim the NWA World Heavyweight Championship and retain the WCW World Heavyweight Championship. In the spring of 1991, Flair had a contract dispute with WCW president Jim Herd, who wanted him to take a substantial pay cut. Flair had resigned as head booker in February 1990 and Herd wanted to reduce Flair's role in the promotion even further, despite the fact that Flair was still a top draw. According to Flair, Herd also proposed changes in his appearance and ring name (i.e. by shaving his hair, wearing a diamond earring and going by the name Spartacus) in order to "change with the times". Flair disagreed with the proposals and two weeks before The Great American Bash, Herd fired him and vacated the WCW World Heavyweight Championship. While Flair had left for the WWF, he was still recognized as the NWA World Heavyweight Champion until September 8, when the title was officially vacated. All Japan Pro Wrestling (1978, 1981–1987, 2013) While working for Jim Crockett Jr.'s Mid-Atlantic Championship Wrestling (MACW), Flair began working tours for All Japan Pro Wrestling (AJPW). On April 27, 1978, Flair challenged for the NWA United National Championship in a losing effort. Throughout the 1980s, Flair defended the NWA World Heavyweight Championship