For The Voice finale on Tuesday night, Gwen Stefani [1] joined fan-favorite Carter Rubin, and together they brought a little holiday cheer to the stage. The duo performed Stefani and Blake Shelton's 2017 holiday hit, "You Make It Feel Like Christmas," and their rendition was purely joyful, to say the least. No offense to Shelton, but Stefani and Rubin make a pretty great team — just listen to that harmony! "I am excited to sing with Carter, because he's so unbelievably talented and he's gonna make me look really good," Stefani said. The two certainly dressed for the occasion, with the coach wearing an over-the-top Christmas tree dress [2], while the young musician opted for a sleek velvet tux with a red bowtie. Watch their merry duet above and find out this season's winner [3].