Gwen Stefani, 46, has described her new single Used to Love You as a "breakup record."

Stefani, who filed for divorce from rock star husband Gavin Rossdale, said that the song described her journey during her heartbreak.

She said her new album will be out early next year, according to People.

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"I did not even know the single was coming out. I promise you that it was very last minute. It's weird because 'Used to Love You' came out the exact same week as the 20-year anniversary of Tragic Kingdom which, just to me, is like 'What are the chances of that?'," Stefani exclaimed.

Tragic Kingdom is the top-selling album of Stefani's former band No Doubt.

In eBuzzNow, The Voice coach also elaborated that Used To Love You is about heartbreak.

"I would consider it a breakup record. Both of them were. It's like the two people I ... I only had two boyfriends. I wrote two records about them. You know what I mean? It's just weird," Stefani said. "It just makes me believe in God and my journey. My cross to bear was to go through these heartbreaks and write these songs and help people."

When asked if her new single is about her divorce from Gavin, Stefani admitted that - "My truth is 'Used to Love You,' that's the song. That's what I said, and I feel really fine about sharing that, and I feel honored to share it."

Stefani is also now romantically linked with her The Voice fellow coach Blake Shelton.

TagsGwen Stefani, Used to Love You, Gwen Stefani Gavin Rossdale, Gwen Stefani Blake Shelton, No Doubt, Tragic Kingdom