Coaches (and engaged couple) Blake Shelton and Gwen Stefani sang their duet "Happy Anywhere" during Part 1 of the season finale of The Voice last night. Watch below: 

Blake Shelton announced that his next single would be "Nobody But You", his duet with girlfriend Gwen Stefani! The song is one of four new tracks on Blake's latest album Fully Loaded: God's Country.

“I was at The Voice compound and Shane McAnally is on Songland, so they were there doing some cross-promotion. Shane came to my trailer and said, ‘Man, I got a song for you,’” Blake said in a press release. “I knew he had Gwen’s number from a write, so I told him to send it to her as I was being called to set. I actually got the song twice because my producer Scott Hendricks emailed it to me right after. Then one day I was driving with Gwen and I said, “Hey let’s listen to that song from Shane, because Scott sent it to me too – it must be pretty incredible.” When I heard it, I was just floored. I realized how important that song was for me and where I am in my life right now. I just think it’s magical. I literally think it’s important of a song as I’ve ever recorded.” 

Blake and Gwen will perform this song live at the 62nd Annual GRAMMY Awards on Sunday, January 26th at 8pm on CBS. Blake is nominated for Best Country Solo Performance for his 2x Platinum smash “God’s Country.”