According to Jrock Revolution, the drummer and leader of the reactivated Japanese rockers X JAPAN, Yoshiki, announced at a press conference on Monday (September 15) that the band will play a "countdown concert" in Japan on December 31. An X JAPAN "Christmas event," which may be a classical concert, is also planned. The venue details for both shows will be announced soon. Yoshiki also revealed that he has written a new "heavy and violent" song for X JAPAN although it's unclear where the track will eventually end up.Video footage of Yoshiki's press conference can be viewed below. X JAPAN were recently forced to reschedule their concerts in Paris, Taiwan and New York after Yoshiki underwent medical treatment at his home in Los Angeles to address his chronic disc herniation (also known as a "slipped disc") and tendinitis. According to Tokyograph, Yoshiki was advised for several years by his doctors to wear a corset during live performances to help address the problem, though he disregarded that advice for X JAPAN's reunion concerts at the Tokyo Dome in March. Despite suffering a separate injury during the first of those shows, he continued his energetic performances, and at the 10th-anniversary edition of the annual Hide Memorial Summit (a two-day tribute festival to the band's late guitarist Hideto "Hide" Matsumoto, who committed suicide in May 1998), he re-triggered the herniated disc. Yoshiki has previously had to take extended time off due to his condition, spending half a year in recovery in 1990 and nine months in 1996.