SWV were my favorite female group when I was a teen [[aside from you know who). Interesting take on the subject of the lead singer vs the backing vocals by the producer who crafted their initial hits. Around the 4:16 mark he talks about Flo and Mary and their role as Supremes. His take is slightly different than mine- as I'm of the opinion that they were far more than capable lead singers themselves- but he's spot on regarding their contribution which should never be overlooked.