who are the winning coaches of the voice
Adam Levine
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The Voice (American TV series)
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Blake Shelton
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The Voice (American TV series)
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Usher
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The Voice (American TV series)
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Pharrell Williams
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The Voice (American TV series)
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Christina Aguilera
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The Voice (American TV series)
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Alicia Keys
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The Voice (American TV series)
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