Same here....

loved Rare Earth. I think I may have seen them once. Odd, huh? That I can't remember for sure? .

I saw many groups WAY back then who hadn't quite made it yet. They'd open for the more well known groups and I think that was the case with Rare Earth. Another group relegated to that grayed out section of my brain is Chicago... whom I "THINK" I saw long long ago while in New Jersey.

Not helping my memory was that back then I saw a lot of concerts in, let's just say, less than a clear headed condition.