That same year he co-produced the soundtrack for the 2007 film "Catacombs", which included the Violet UK song "Blue Butterfly" and was released by his Extasy Records International. On October 22, 2007, X Japan's living members reunited and appeared together for the first time in over 10 years at a public filming of the promotion video for their new single "I.V.", which was created for the American horror movie "Saw IV" and played during the end credits but was not included on the soundtrack album. On September 20, 2007, at a "Catacombs" preview in Japan, it was announced that Yoshiki would be producing the 2008 rock musical "Repo! The Genetic Opera" and its soundtrack, along with composing one extra track for it. In 2009, he contributed the theme song "Blue Sky Heaven" for the 30th anniversary of a Nippon Television program, and for the Japanese historical fantasy film "Goemon" he wrote the Violet UK song "Rosa", which was released on April 29 via iTunes. That year he again collaborated with Mugen Motorsports and racing car constructor Dome for the Super GT series championship. In July 2009, he had to undergo surgery for a slipped disc in his neck, and was told by doctors to refrain from heavy drumming. His neck is so severely damaged that Yoshiki's management has said that it, "would force a professional rugby player to retire."