Gwen Stefani just scored her first-ever No. 1 country hit, with the help of boyfriend Blake Shelton.

The power couple has claimed the top spot on the Billboard Country Airplay chart with their duet "Nobody But You." While it’s Stefani’s first country chart-topper, it marks Shelton's 27th No. 1 on the Country Airplay chart.

Since its January release, the song -- which was written by Shane McAnally, Ross Copperman, Josh Osborne and Tommy Lee James -- has amassed nearly 80 million on-demand streams and sold more than 750,000 track equivalents.

"Congratulations @gwenstefani on your first country song going #1 at country radio!!!" Shelton, 43, wrote on social media. "Not bad for your first try!!!!! Thank you all as well!!! #nobodybutyou"

"Trying to wrap my head around the fact that I even get to know you Blake Shelton - let alone be on Such a beautiful classic duet w u?!" Stefani, 50, wrote back. "Thank you for taking me along on this ride with you!! I am so grateful and blown away by all the support everyone has shown us!!?!!"

"Nobody But You" is the third single off of Blake's 2019 compilation album, "Fully Loaded: God’s Country." It's the couple's third duet following "Go Ahead and Break My Heart" and "You Make It Feel Like Christmas."