And another thing, both of them got vocal training. In fact, here is a quote from DC4's vocal teacher, right around the whole DC4 split controversy was happening: Brewer is wistful when he recalls how he taught the girls not just to sing, but to understand the technical and physiological concepts underlying the musical instrument that is the human voice. Even now, reeling with disappointment over what he sees as a change in her character, Brewer marvels at Beyoncé’s natural gifts. "Beyonce was the only one that came with this phenomenal voice. Kelly’s voice was little more than air. With LeToya, I thought ‘she will take a longer time to learn to sing in a pop or R&B style’ because she had a very naturally high placed voice. I had to teach her to sing in her "chest" voice."

"I taught Beyonce how to instruct – so she could teach the chords she composed to the others. I taught them how to hear cords, how to sing in tune. Their background vocals are very tight, as you’ll notice, because they were taught to sing "in vowel" – everybody understands the same placement for "ee" or "ah" – they place each phrase in the same part of the mouth. Each girl’s technique is the same. When they sing "ah’ they do it the same way, so that’s why it’s tight." He seems proudest of the time he spent with Beyoncé separately, and he still regards her as a rare talent. He sounds like a proud papa when he describes how he taught her to build chords. "She learned very, very well. She was a very bright girl."

And he was working with them around the time of this video and this coming from someone who was defending TAVIA and TOYA at the time so this was from an unbias, objective place. That's not to knock Kelly, because not everyone like fuller voices and just because a singer has a fuller voice don't make them better.