I've heard of most of those, but Moby Grape, Revolting Cocks, Uriah Heap, Def Leppard, and Holly Near are all pretty well known acts. MG and Holly are very, very well known. Holly Near kept Olivia Records in biz for years just because she sold so well.
But I'd say, this week, its Janelle Monae. You're going to hear from here, and about her real soon.