Oomori Seiko and Michishige Sayumi will hold a two-man live titled 'Midnight Seijun Isei Kouyu LIVE' on February 3 at Zepp DiverCity TOKYO. 

Oomori had respected Michishige since before her major debut. In fact, she dedicated her song "Midnight Seijun Isei Kouyu" (released in 2013) to the ex. Morning Musume member. This song actually aired on the radio program 'Morning Musume.'14 Michishige Sayumi no Konya Mo Usachan Peace' hosted by Michishige on February 3, 2014, so this collaboration will take place exactly ten years since that day. 

Advanced ticket reservations will be available for members of each artist's fan clubs from December 16. Meanwhile, pre-reservations via their official websites will begin on December 23.