The Voice Season 4 Promo: Watch Shakira and Usher Sing With Adam Levine and Blake Shelton (VIDEO)

As we say goodbye to Season 3 of The Voice, it's time to get excited for Season 4! And this season features two new coaches — Shakira and Usher. To celebrate the March 25, 2013 premiere of our favorite music competition show, NBC released this hilarious promo.    Watch the video and tell us what you think below!


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