The problem is that, at first, finding 8 Motown stars who would fulfil the criteria (dead, good profile, free-of-rights pic, and the most difficult: connected) seemed like Mission: Impossible.
Now on top of that, if you're asking that they led a life beyond reproach off stage... There was a Rock Legends feature two months ago and I doubt all the people who were profiled then would pass that test. Nah, I know some of them wouldn't.
Not a criticism of you, just a statement of fact: it's going to be extremely difficult.
On a positive note, the best and only way (though not guaranteed) to prevent someone you don't like from being featured is to suggest someone else. So, you can do something about it.
(edited for grammar, error).