Carol Burnett & Kelly Clarkson Duet Carol's Famous Sign Off Song 'So Long'
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Kelly couldn't resist the chance to sing a duet with Carol Burnett of her iconic sign-off song from "The Carol Burnett Show." Tune in today for more fun with Carol Burnett, and make sure to catch the "Carol Burnett: 90 Years of Laughter + Love" special tonight at 8/7c on NBC.