Gwen Stefani picked an unlikely song for her team during the first Battle Round on 'The Voice.' She chose Dolly Parton's 'Jolene' for Amanda Lee Peers and Taylor John Williams, and they delivered.

Stefani's husband and lead singer of rock band Bush, Gavin Rossdale, helped coach Peers and Williams on the country legend's iconic song before they performed. When it came time to take 'The Voice' stage, the pair started off singing the song together. Peers seemed to put her heart and soul into the performance, even gripping the mic much like her coach Stefani does while on stage. Williams added the folk-y sound to the Parton cover, and it was one the country legend would definitely be proud of. The two came together at the song's end, hugging.

"You guys did such a beautiful job," Adam Levine told the two. He went on to call Williams "amazing," offering a word of advice to Williams: "Pay attention to how passionate she is about her performance.”

Blake Shelton picked Peers, saying he could only judge by what he heard during 'Jolene.' “You guys both sang great but I gotta go with what I saw and what I heard,” he said, adding that she “sang crap out of it.”

Pharrell had kind words to say about both, calling Williams a "star" and saying, "you have what it takes." In the end, though, it seemed like he'd pick Peers, as well.

Although all the coaches got to weigh in on the Parton rendition, it was only Stefani's opinion that mattered. “Taylor you’ve come far," Stefani said before declaring a winner. “The winner of the battle is going to be Taylor.”