See Gwen Stefani Join Blake Shelton for Stirring Duet of Her Hit Single

The star surprised some lucky fans at one of Shelton's tour stops.

Blake Shelton's Back to the Honky Tonk tour ended with a bang, thanks to some help from his wife, singer Gwen Stefani.

Shelton finished off his tour with a final stop in Buffalo, New York, on March 25, and the fans attending the show got a special surprise when Stefani stepped on stage to join Shelton for a few songs.

While fans might not've been surprised when the couple performed two of their collaborations, "Nobody But You" and "Happy Anywhere," Stefani also gave a stunning performance of "Don't Speak," the hit song by her band No Doubt that was released in 1995.

Shelton subtly transitioned into playing the song on guitar after showing off his skills with a couple of other famous tunes, including "Sweet Home Alabama."

As Shelton started playing "Don't Speak," Stefani came on stage to sing the well-known song to the large crowd. At the end of the song, Shelton shouted to the crowd, "This is Gwen Stefani, everybody," as seen in a fan video of the concert on YouTube.

Stefani also performed with Shelton on the tour stop in Oklahoma City, Oklahoma, Shelton's home state.

They also performed "Don't Speak" that night, and after the song finished, Shelton introduced the audience to his wife as, "your new home-towner, Gwen Stefani; I mean, Gwen Shelton," as reported by The Oklahoman.

Shelton began his Back to the Honky Tonk tour with his first stop in Lincoln, Nebraska, on Feb. 16, with more stops all around the country, including Tampa, Florida; Louisville, Kentucky; Cincinnati, Ohio; and Pittsburgh, Pennsylvania.

Now that the tour is over, the couple is able to relax and spend some quality time together at their ranch house in Oklahoma, which Stefani and Shelton recently shared a look at on TikTok.

And once this season of The Voice is over, they'll have even more downtime, as this will be Shelton's last season on the show.