B'z appeared as a secret guest on today's Hibiya Ongaku Sai 2023 Hibiya Dream Session 2
Songs wise , they performed ultra soul & Ichibu to Zenbu
https://twitter.com/Bz_Official/stat...71188875091968
https://twitter.com/Bz_Official/stat...95675599339522
https://twitter.com/hibiyamusicfes/s...02891173941248
Oh wow
Their name is not officially listed in this weekend's Hibiya Ongaku Sai 2023 Hibiya Dream Session 2 performers lineup
Imagine the reactions from people who attended today's concert
So lucky