Gwen Stefani & Blake Shelton 'Make It Feel Like Christmas' on 'The Voice' -- Watch Their Adorable Performance!

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Gwen Stefani and Blake Shelton are getting into the holiday spirit!

The lovebirds teamed up for a special performance of their new duet, "You Make It Feel Like Christmas," on Monday's episode of The Voice, melting our hearts with their powerful vocals and undeniable chemistry.

Stefani, 48, opted for a festive ensemble, consisting of a sheer black dress with red-and-green flowers, over-the-knee boots and her signature red lip. Her beau, 41, sported a more casual look -- a black vest and tie over plaid shirt and dark wash jeans.

Around the stage, their dancers pranced around in '50s-inspired garb: the guys in leather jackets, skinny jeans and Converse, the ladies in plaid poodle skirts, ruffled socks and turtlenecks.

"I never thought I'd find a love like this," Stefani sang, adorably staring into Shelton's baby blues. "But I found forever in that very first kiss. I wanna thank you, baby. You make it feel like Christmas."

Watch the full performance below:

Following the show, the No Doubt rocker continued to gush over her boyfriend of over two years via Instagram, sharing a series of pics from their fun-filled night.

"@nbcthevoice @blakesheltonseriously can't believe this happened!??" she captioned one of the snaps. "I am in a Christmas snow globe dream! #youmakeitfeellikechristmas gx 🎄🎄🎄🎄🎄🎄🎄"

"#youmakeitfeellikechristmas," another post read. "@nbcthevoice @blakeshelton #backstagegx."

She also posted a sexy selfie of the country crooner, clad in head-to-toe camouflage.

"Got my Christmas present already," Stefani marveled. "gx #youmakeitfeellikechristmas@blakeshelton #yum."

Last month, Stefani was a guest on The Tonight Show Starring Jimmy Fallon, where she revealed the hilarious gift she plans on giving to Shelton for Christmas.

"He's so hard to buy for!" she confessed. "He already has the wildebeests [on his ranch], I was gonna get him that. But I think that, because he doesn't fit in any of my furniture at my house -- because he's too big -- I'm like, OK, I'm gonna get you a couch and that's gonna be your Christmas present. I'm putting it outside so he can [have campfires]. I try to make him feel comfortable in LA."

Hear more on Stefani and Shelton's holiday plans in the video below!

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