Free to pick her own song, Cassadee takes on Avril Lavigne's "I'm with You."
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Nicholas chooses a musical classic: "Somewhere Over the Rainbow" from "The Wizard of Oz."
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Cee Lo Green and Kermit the Frog perform a Muppets classic live on The Voice. Naturally.
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Adam Levine and 50 Cent thrill the house with a live performance of their new collaboration, "My Life."
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As her coach Adam Levine looks on, Amanda gives her best to Adele's "Someone Like You."
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Cody Belew invokes his inner Freddie Mercury, covering Queen's "Somebody to Love."
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With his coach (and the song's writer) Blake Shelton watching, Terry nails his cover of "Over."
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Dez thrills the crowd with his take on Justin Bieber's "You Smile."
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Melanie puts her own twist on Alex Clare's "Too Close."
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Cassadee puts her heart and soul into Michelle Branch's "Are You Happy Now?"
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Nicholas David brings his unique soulful style to Marvin Gaye's "What's Going On."
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Trevin goes big once again, covering Whitney Houston's "Greatest Love of All."
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