This is what's wrong with music today
In the studio, rarely, if ever, does a star sing a song the whole way through. Instead Mr. Harrell builds a gleaming whole from granular bits. A singer working with Mr. Harrell covers a few bars a line or two, maybe four over and over, with different emphases and inflections, until Mr. Harrell hears what he wants. The process repeats for each section. Only later, after the singer is gone, does Mr. Harrell stitch the best pieces together, Frankenstein-like, into the song you hear.
Read the whole article for yourself because I certainly couldn't after that paragraph.
Its bad enough that they do this, but these people seem somehow proud of it. Proud enough to cooperate with the reporter. If I was doing this they would have had to bust in on me Mike Wallace style.