Ariana Grande got in on the act Monday as her duo of Jim and Sasha Allen performed live on The Voice during the season 21 semifinals on NBC.The 28-year-old pop star told Jim, 57, and Sasha, 19, that they would be performing the Simon & Garfunkel classic Mrs.
Robinson as the Top Eight took the stage.Ariana during rehearsal suggested that Sasha also play guitar during their performance and actually handed a guitar to him mid-song.
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