Country star trivia Burke/Triolo Productions/Thinkstock Who was the first act ever to win the CMA Vocal Duo of the Year trophy, which was introduced in 1970? ANSWER: Porter Wagoner & Dolly Parton. Copyright © 2017, ABC Radio. All rights reserved. Comments comments By ABC News|2017-07-05T10:00:39-05:00July 5th, 2017|Music News|Comments Off on Country star trivia Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail About the Author: ABC News Related Posts