From Tokyograph:

This May, KAT-TUN will become the first artists to perform on seven consecutive nights at the Tokyo Dome. The current longest streak is four nights, achieved by KAT-TUN last year and by British rocker Sting in 1988.

The concerts will be held on May 15-21. Preparations and rehearsals are scheduled to start four days before the shows, which means that KAT-TUN will be taking over Tokyo Dome for 11 days while the Yomiuri Giants are on the road. 385,000 fans are expected to attend the concerts.

Johnny’s Jimusho began discussing the possibility of an extended Tokyo Dome run more than two years ago. Tokyo Dome staff contacted Johnny’s Jimusho about the opening around early December, after the Giants’ schedule was finalized.