Rainbow performed on this day in 1981 at the Budokan in Tokyo, Japan.
Rainbow were at this time near the end of their Difficult to Cure Tour, supporting the album of the same name. The Budokan concerts were followed by only one single concert in Hawaii before everything came to an end.
This concert is known to have been recorded, and is in circulation online.
I talk more about the Budokan, where the group performed, here.