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Gwen Stefani, Blake Shelton

Norm Hall/Getty Images

Gwen Stefani and Blake Shelton's holiday festivities continue!

The new couple, who seemed to have an extremely busy yet exciting Christmas weekend, decided to go wine tasting together today in Santa Barbara, Calif.

A source tells E! News that The Voice lovebirds, along with another couple, stopped by Mosby Winery and Vineyard Monday. The foursome stopped at the Buellton winery as part of a wine-tasting tour that they were on.

The insider added that Gwen and Blake tasted a few of the wines and stayed for about half an hour, and says the couple were very "sweet with each other and seemed very happy together," and although this twosome have been PDA-friendly lately, their affection during the visit was "appropriate" and they were "sweet and delightful" with everyone.

An Instagram page dedicated to the couple shared a photo of Shelton during the wine visit, writing, "Wine tasting today. This isn't So Cal. This is Buelton in Santa Barbara. They must be a romantic getaway. Blake looking cool in camo. #blakeandgwen #gwenandblake #blakeshelton #gwenstefani."

Just yesterday, the duo attended a Green Bay Packers and Arizona Cardinals NFL game at University of Phoenix Stadium in Glendale, Arizona.

The 39-year-old country singer sported a Cardinals sweatshirt and 46-year-old rocker wore a a camouflage Cardinals baseball cap while cheering for the home team.

"They were sitting close and holding hands at a point. They were extremely friendly to fans, players and the people around them," a source told E! News. "Blake loves football and is a big fan of the Cardinals so it was nice that Gwen saw him in his sport element."

"You could see how in love they are with each other," the insider added. "Gwen was smiling ear to ear throughout the whole game!"