It's "fun" metal that non-metal heads can into because Ronnie James Dio is awesome and hilarious at the same time. Trying to sing like him is too much fun. From my experience, Holy Diver is one of the most-enjoyed GHE80s tracks because of the vocals/lyrics despite only being able to play guitar and bass. However, Ranbow in the Dark would be such a fun song because the guitar work is great, singing like Ronnie would be a blast, and the boom...(pause)...boom..(pause).boom..drum part is pure cheesy metal.
It's regarded as of one of the top metal songs of all time and it's from the 80s, so it represents a genre and era, fitting into the setlist nicely.
Not sure I was too eloquent in my pitch for it, but I think it would be a great fit. Of course probably too late at this point.









