Gwen Stefani Reveals the Title of Her Duet With Blake Shelton

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Plus, check out the 'If I'm Honest' tracklist for clues on which songs are about Gwen, Miranda Lambert, and more.

Blake Shelton and Gwen Stefani's relationship has produced some sweet, sweet music.

We know the couple was writing a tune together last year, but now we have the title of that track: "Go Ahead and Break My Heart." The duet will appear on Shelton's new record, If I'm Honest, and Stefani graciously gave us a peek at her advance copy of the CD -- just one perk of being the country singer's girlfriend.

"Look what I found lying round the house! #ispymyname #goaheadandbreakmyheart @blakeshelton #eeeekkkk! #crazy! Gx" she tweeted on Tuesday.

WATCH: Gwen Stefani Says She Wrote 'Make Me Like You' About Blake Shelton in Under 15 Minutes

As for the rest of the tracklist, there are definitely a few titles that seem to be about Miranda Lambert -- "Every Time I Hear That Song" sounds like a breakup song to us -- some that may be about Stefani, and one Angry Birds anthem.

Here's the entire If I'm Honest tracklist:

1. "Straight Outta Cold Beer"
2. "She's Got a Way With Words"
3. "Bet You Still Think of Me"
4. "Every Time I Hear That Song"
5. "Came Here to Forget"
6. "Every Goodbye"
7. "It Ain’t Easy"
8. "Guy With a Girl"
9. "Go Ahead and Break My Heart" featuring Gwen Stefani
10. "Friends" (from the Angry Birds movie)
11. "One Night Girl"
12. "DoingItToCountrySongs" featuring The Oak Ridge Boys
13. "Green"
14. "You Can't Make This Up"
15. "Savior's Shadow"

"It doesn't take, you know, a rocket scientist. If you have followed my career even a little bit in my life, you know what has happened with me in the last, gosh, eight or nine months," Shelton told ET about including his divorce and subsequent romance in his new music. "It is all on the record."

Find out what else he exclusively told ET in the video below.