The Voice 2013 Season 4 contestants performed as the top 6 took the stage in a night of surprises and duets.

One of the first surprises happened after early star Michelle Chamuel performed the Taylor Swift hit "I Knew You Were Trouble." Chamuel got about 30 seconds into her rehearsal performance when Taylor Swift herself came out to help. Chamuel responded, "Do I really have to keep singing right now? This is crazy!"

Swift was gracious and encouraging, thanking Chamuel for performing her song. What she probably meant to say was "Thanks for all of the performance royalties that I'll get from you picking this song. I think I'll use them to buy a Rolls." But, I could be wrong. Either way, Swift got paid.

The rest of the judges were as enthusiastic about the performance as Swift, with host Carson Daly saying that the performance was the most "enthusiastic of the night."

The rest of the contestants also did well, but the time was up for one contestant: Team Blake's Holly Tucker. Tucker performed "When A God-Fearing Woman Gets the Blues" by Martina McBride and "My Wish" by Rascal Flatts.