The blind auditions continue on The Voice tonight, Sept. 29 and there will be yet another battle amongst Adam Levine, Gwen Stefani, Pharrell Williams and Blake Shelton since certain contestants will capture all of their attention.

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The Voice YouTube channel uploaded a sneak peek at a duo's, Andi and Alex, blind audition to "Thank You," which gets Levine super passionate.

In the sneak peek, which is below, the twin sisters tickled Stefani's fancy first, followed by Levine. Shelton and Williams took the leap and pushed their red buttons too soon after.

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Stefani really got into their performance and is seen singing along from her seat. The duo truly enraptured these coaches with their gentle vocals, which led to Levine giving them a standing ovation. Stefani soon joined him as did Williams and Shelton.

"That is so amazing!" Stefani gushed with Pharrell adding, "And refreshing!"

Levine then dived into why they were so incredible, noting, "Whether you guys were in unison or in harmony it was just so unbelievably thoughtful."

"You can hear each of you being compassionate to the other vocally," Levine dished, calling it "lightning in a bottle."

"I'm going to keep fighting as hard as I can for you guys because I think you guys are one of the most perfectly fitting duos I've ever heard," he promised, adding, "I am astonished at how good that was."

The twins look overwhelmed to hear such praise from the Maroon 5 singer and he even took a dig at Shelton as payback in a sense for the way Shelton threw him under the bus with a previous blind audition contestant.

Who will Andi and Alex select as their coach? Watch The Voice to find out.

The Voice airs on Mondays and Tuesdays at 8 p.m. ET on NBC.

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The Voice, Television, Nbc