Gwen Stefani & Blake Shelton Keep Romantic Holiday Weekend Going With a Trip to Wine Country

The cute couple made their way to a winery in Northern California on Monday where they enjoyed each other's company, and some Pinot Grigio.

Blake Shelton and Gwen Stefani are making the most of their holiday season!

One day after taking in a football game in Arizona, the cute couple were spotted wine tasting in Buellton, California.

A source tells ET that Shelton and Stefani went on a half-hour guided wine tour at Mosby Winery, along with another couple.

WATCH: Gwen Stefani and Blake Shelton Take a 'Selfie Break' at Arizona Cardinals Game

The Voice co-stars enjoyed a selection of the winery's Italian offerings, including a Pinot Grigio. The source shared that the couple were "delightful" to the staff and "seemed very happy together."

The Winery later shared a photo of Stefani standing with manager Louise Smith, along with a message of gratitude for the couple's visit.

"Mosby Winery had the distinct privilege of hosting Gwen Stefani & Blake Shelton along with 2 of their friends today! What an absolute treat!" the Winery's Facebook post read. "They were so wonderful, sweet & just great people... Thank you so much for visiting & I hope to see you again!"

One fellow wine-taster also snapped a pic of the 39-year-old country crooner at the winery, which they shared to Instagram.

WATCH: Gwen Stefani and Blake Shelton Spend Christmas Together In Oklahoma

Meanwhile, Shelton's ex, Miranda Lambert, seems to have moved on as well. A source recently told ET that the 32-year-old GRAMMY winner is dating 27-year-old singer Anderson East.

Lambert also shook things up on Christmas Eve when she began following Stefani on Twitter, just in time to catch some of the 46-year-old No Doubt singer's PDA-filled pics with Lambert's ex.

WATCH: Miranda Lambert Follows Gwen Stefani on Twitter and Catches Plenty of Her Holiday PDA with Blake Shelton

The most recent pic Stefani shared was of her and Shelton's trip to University of Phoenix Stadium in Glendale, Arizona, to watch the Arizona Cardinals play the Green Bay Packers on Sunday. The two lovebirds took a moment to snap a cute selfie while sitting on the sidelines.

Check out the video below for more on Blake and Gwen's fun night out at the game.