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Top 20 Countdown: American Authors' Zac Barnett Takes His Turn At The Guillotine

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Zac Barnett of American Authors rings in the number one song on this week's Top 20 Countdown, but first, a little magic. Watch Barnett do a guillotine magic trick at the Houdini Museum of New York before announcing Taylor Swift's "Style" as this week's top single.

Ever wanted to turn a piece of cloth into a live rabbit? Watch Barnett make your dreams come true at Fantasma Magic Shop in New York City in the clip.

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[Photo: VH1]