Gwen Stefani and Blake Shelton Wear Ugly Christmas Sweaters, Pose in a Photo Booth Together

As the Winter months get colder, Blake Shelton and Gwen Stefani's romance continues to heat up. The Voice coaches took their new love to Nashville this weekend to celebrate the engagement of RaeLynn, Blake's former teammate on the singing competition show. The ugly-sweater-themed party not only looked like an absolute blast but was planned by Blake himself. In one of the pictures RaeLynn uploaded to Instagram, the couple is seen showing off their holiday spirit in a festive photo booth. "Thank you @amandacraig12 and @blakeshelton for being the best hosts! Me and @josh_davis_18 are so thankful #destinedtobeadavis," RaeLynn wrote. Keep reading to see the Instagrams ahead, and check out the cutest photos of Gwen and Blake so far!