On Friday, the "Just a Girl" singer released "Somebody Else's," the next single off her upcoming country-rock album, Bouquet, which details why she had to leave an ex -- and is feeling much better now that he's "somebody else's problem."

Gwen Stefani, whose exes include Gavin Rossdale and Tony Kanal, calls an ex ‘somebody else’s problem’ in new song

Gwen Stefani’s lyrics are a sweet escape back to the past. The 54-year-old released the next single, “Somebody Else’s,” off her forthcoming album “Bouquet” on Friday and didn’t hold back on the country-rock track.

Gwen Stefani's new song "Somebody Else's" shares her love for Blake Shelton and shades an unnamed ex from a previous relationship.

Blake Shelton and Gwen Stefani's romance has always been in the public eye, as they met while judges on The Voice and while both were going through high-profile divorces, and so it makes sense that the pair would feel an affinity for another couple whose romance has been front and center for the public — Taylor Swift and Travis Kelce.