Gwen Stefani rocks a festive Christmas tree dress singing You Make Me Feel Like Christmas

Gwen Stefani rocks a festive Christmas tree dress while singing her hit duet You Make Me Feel Like Christmas with The Voice winner Carter Rubin

Gwen Stefani was certainly in the Christmas spirit on the Season 19 finale of The Voice on Tuesday night, rocking some very festive attire.

The 51-year-old actress performed a duet of her 2017 holiday hit You Make Me Feel Like Christmas with finalist Carter Rubin.

Rubin would go on to win Season 19 of The Voice, becoming the first contestant ever to win from Team Gwen, and being the youngest male contestant to win at just 15 years of age.

Duet: Gwen Stefani was certainly in the Christmas spirit on the Season 19 finale of The Voice on Tuesday night, rocking some very festive attire.

While Rubin kicked off the song with the first verse, Stefani turned heads with a forest green dress that resembled a Christmas tree.

The singer rocked a green halter top that showed off her midriff with a massive matching green ruffled dress.

She also had a festive red tiara over her blonde locks, with red ribbons and bows adorned on the tree/dress.

Gwen's look: While Rubin kicked off the song with the first verse, Stefani turned heads with a forest green dress that resembled a Christmas tree

Gwen’s look: While Rubin kicked off the song with the first verse, Stefani turned heads with a forest green dress that resembled a Christmas tree

The song was originally a duet with her then-boyfriend, now-fiancee Blake Shelton, who watched the performance from his judge’s seat. 

Her duet partner Rubin rocked an emerald green tuxedo, with a bowtie and green sneakers for the performance.

While the holiday performance was certainly one of the highlights of the night, the night would only get better for both Carter and Gwen. 

Carter's look: Her duet partner Rubin rocked an emerald green tuxedo, with a bowtie and green sneakers for the performance

Carter’s look: Her duet partner Rubin rocked an emerald green tuxedo, with a bowtie and green sneakers for the performance

Rubin beat out Blake Shelton’s finalist Jim Ranger for the coveted title, marking the first time one of Stefani’s singers has won.

Other finalists were Team Blake’s Ian Flanigan, John Holiday from John Legend’s team and Desz from Kelly Clarkson’s team.

It was Stefani’s fifth season on the show, stepping in this season after Nick Jonas opted not to return this season.

Title: Rubin beat out Blake Shelton's finalist Jim Ranger for the coveted title, marking the first time one of Stefani's singers has won

Title: Rubin beat out Blake Shelton’s finalist Jim Ranger for the coveted title, marking the first time one of Stefani’s singers has won

Stefani and her fellow coach Shelton are expected to tie the knot early next year, after getting engaged in October.

The couple had been dating for five years before Blake popped the question in October, with sources telling US Weekly the wedding will happen on the Oklahoma ranch. 

‘Blake built a chapel on the grounds of his Oklahoma ranch. He did it himself with help. It’s really a tribute to their love. They are going to get married in the chapel, most likely early next year,’ a source told Us Weekly. 

Tying the knot: Stefani and her fellow coach Shelton are expected to tie the knot early next year, after getting engaged in October

Tying the knot: Stefani and her fellow coach Shelton are expected to tie the knot early next year, after getting engaged in October