they def aren't clones of one another especially artistically and vocally
but i can see why Blu was a great fit as a background singer for Faith
Faith does a lot of jazz "scatting" type vocals as well although I wouldn't say she's a "jazz artist"
plus they could pass as sisters
for the average viewer/listener who isn't looking into nuances, it's easy to see why many people kinda put them in the same box
and that especially rings true when we're talking about mainstream back then...cuz a lot mainstream is always driven by the younger crowd who ain't really gonna sit down and pick things apart. the gorls just wanna shimmy, bop and keep it moving. Faith saw a lot of mainstream success.
def doesn't mean they're actually just alike though. just alike enough for people to think they are.
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