Woohyun said he was heard Sunggyu sang Tell me why before and tell me why also the first song that #ToHeart recorded (cr INFINITE7SOUL)金圣圭是打心眼看上twll me why这首歌了。优贤说专辑录制之前就看圣圭唱来着（能给这个大哥一个机会让他唱一遍么跪求）我哥哥小心眼
