On Tuesday, Stefani tweeted out a photo of the back of her man's upcoming album, If I'm Honest. The track list includes a tune featuring Gwen, titled "Go Ahead and Break My Heart." She wrote, "Look what I found lying round the house! #ispymyname #goaheadandbreakmyheart @blakeshelton #eeeekkkk! #crazy! Gx." Well, someone's excited! Clearly, these two are each other's biggest fans. Shelton's album is due out May 20.