スペースシャワーTVにて、back numberを6時間半にわたり大特集する「back number DAY」実施！撮りおろし最新インタビュー番組も放送決定!!
https://skiyaki.s3.amazonaws.com/uploads/ckeditor/attachments/605784/20190314_backnumber.pdf
https://skiyaki.s3.amazonaws.com/uploads/ckeditor/attachments/605784/20190314_backnumber.pdf