The track, "Go Ahead and Break My Heart", was written by both Shelton and Stefani, becoming their first collaboration together.
Talking to Ellen DeGeneres, Shelton said: "When we wrote the song, we never saw it going there, I don't know that we ever really saw it going anywhere. I only started the song to impress her. To be like, 'Hey, I’m writing a song about ya.'"
"So I sent it to her, and then she wrote the other half of the song. I was like, 'Oh, she just one upped me,’ so..."
The same day of its release, they performed the song twice. The first appearance was on The Voice. The other performance was at a promotional iHeartRadio concert.
Here are the words to Go Ahead and Break My Heart from DirectLyrics.com.