I can't recall a public performance more divisive than Aretha Franklin's cover of Adele's "Rolling in the Deep" on the Sept. 29 episode of The Late Show with David Letterman. The conversations I had about it fell into two distinct camps: those who loved and those who hated it. Both were adamant. One person on the latter side suggested that anyone who posted praise of it was just traffic-whoring. One person on the former side jokingly called for a ban on opinions, specifically of those who suggested that Franklin's vocals on the studio version of "Deep" had been sweetened with Auto-tune .