Kelly Clarkson has treated the audiences with plenty of unforgettable Kellyoke performances, but her 2019 duet with fellow The Voice coaches might be one of the most memorable.

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In 2019, Blake Shelton, Gwen Stefani, and John Legend were invited to the Kelly Clarkson show for a stunning rendition of “Neon Moon” by Brooks & Dunn and Kacey Musgraves, a country jam that perfectly suits all of their voices. Even Carson Daly picked up a guitar, adding to the perfection. It’s great to see the collaboration of coaches in a stunning performance.

Each of them brought their own signature sound—Shelton’s country soul, Stefani’s smooth vocals, Legend’s signature R&B flair, and Clarkson’s powerhouse range—blending together in perfect harmony. Their harmonies blended beautifully, creating a moment that fans still rave about as one of the most epic Kellyoke moments ever.

Gwen Stefani On 'Kelly Clarkson Show': Watch | Billboard

“I’m a little late to this amazing rendition but in the midst of our crazy 2020, this just made me so happy! I love these four together. Their voices are so unique … Kelly, really? There’s nothing that girl can’t sing. Blake? Just so manly I always love how he sings with his whole body and face. You can feel the passion in every word.” A viewer online shared thoughts.

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“Then there’s Gwen? Sexy with an edge that is unmatched. And then comes John? He’s just suave. I love when he walks out so cool and collected. And when they bring out Carson … My morning was set! All four of these super stars are so humble and share the stage. The hug at the end and I can go on with my day.”

Watch The Voice Coaches Sing “Neon Moon” on 'The Kelly Clarkson Show' [VIDEO] | B104 WBWN-FM

Another added, “They’re so great together. Their voices blend so well. I can’t wait to hear them sing again.”