For Gwen Stefani, the best antidote for divorce is a hit album

Gwen Stefani oozed sunshine over the phone. Not Southern California sunshine. But I'm-happy-in-life sunshine.

Of course, there's no simple explanation for how she got there. Ask her a question and you get a long-winded, self-analytical and very revealing answer.

Never during the course of an hourlong conference with several journalists did she offer a short, straightforward answer.

The pop superstar's life of late has been complicated. Divorce from her rock-star husband of 13 years, Gavin Rossdale of the band Bush, shortly after their third son was born. Then new romance with country superstar Blake Shelton, her fellow, just-divorced coach on NBC's "The Voice." And suddenly a new album ("This Is What the Truth Feels Like") and then a tour to promote it, which comes to St. Paul on Sunday.

"I wasn't making this record to talk to you about it. I wasn't making this record to go on tour. I wasn't making this record to share it," Stefani, 46, admitted before the tour started. "I was making it because it's all I could do, you know what I mean, to save my own life."

Her first solo album in 10 years and her first recording since No Doubt's modest-selling "Push and Shove" in 2012, it started as an arduous process but eventually came together quickly.

Stefani recorded a solo album working with Ryan Tedder, Calvin Harris, Charli XCX and Sia and then scrapped it in 2014. She started over after filing for divorce last summer from Rossdale, who reportedly was cheating on her with their children's nanny.

She worked with producers J.R. Rotem, Mattman & Robin and Greg Kurstin and songwriters Justin Tranter (Fall Out Boy's "Centuries," DNCE's "Cake by the Ocean") and Julia Michaels (Justin Bieber's "Sorry," Nick Jonas' "Close").

"I didn't have a direction of style," the singer explained. "I just wanted the truth. I just wanted it to be my words, my feelings, what I was going through right then. It was all about the emotion."

Even though she was working with hit producers and co-writers, Stefani said she wasn't concerned about making commercial music.

"I wanted to be on the radio. I wanted to have a hit. Like, who doesn't? But this record wasn't really, certainly wasn't about that. It wasn't about trying to find a sound or please anybody or, 'Oh, the kids are going to like this.' There was none of that. It didn't even come into the picture because of what I was going through.

"It's ridiculous to think that I would even have time to think up that kind of stuff, you know? [I was] just trying to save my life and get through something I never thought I'd have to get through."

Two of the album's happy songs, "Make Me Like You" and "Misery" (it really is happy despite the title), were inspired by her new relationship with Shelton, which has been tabloid fodder but wasn't directly discussed in this telephone conference.

"I was writing two songs a day where I couldn't even write a song for years," Stefani explained. "The songs were coming so fast and a lot of the ideas were so simple. The best stuff is usually simple, if you think about it, but it's the hardest thing to do."

The pride of California's Orange County, Stefani joined the ska-flavored No Doubt, at her older brother's invitation, when she was in high school in 1986. Five years later, the band signed with Interscope and its third album, 1996's "Tragic Kingdom," became a blockbuster on the strength of the singles "I'm Just a Girl" and "Don't Speak." The record chronicled Stefani's split from No Doubt bassist Tony Kanal, her boyfriend since high school.

No Doubt's momentum continued until Stefani offered her debut solo album, the 4-million-selling "Love. Angel. Music. Baby" in 2004. It included her first No. 1 song, the hip-hop-flavored "Hollaback Girl," plus a hit duet with rapper Eve, "Rich Girl." That year Stefani also made her acting debut, playing Jean Harlow in Martin Scorsese's "The Aviator."

Stefani undertook her first solo tour in 2005 and did another one two years later to promote her second solo album, 2006's dance-oriented "The Sweet Escape." And then she returned to No Doubt, hitting the road in 2009. It was not an easy tour.

When her third son arrived, Stefani took on another side gig four weeks later — coach on NBC's "The Voice."

"I hadn't thought about doing something like that," she recalled. "And I just kind of went, 'Yeah, let's go.' I didn't even know what I was getting myself into."

She did two seasons as a coach, in 2014 and last fall. This spring, she returned as an adviser to Shelton's team. On "The Voice," the newly minted couple performed the duet "Go Ahead and Break My Heart," which became a modest country hit and appears on Shelton's latest album. She dropped her own album in the middle of "The Voice's" season.

That's not exactly how she would have scripted 2016.

"I never knew this year was going to happen. You couldn't have written it," Stefani gushed. "I feel just so excited to have a record coming out in real time."

Regardless which outfit she's wearing, the pop superstar thinks the tour will be "super-emotional.

"I think there's going to be something quite, I don't know, like satisfying and healing, and it's going to be something that's going to make me feel super-empowered, and it's part of the journey of, like 'Wow.' I climbed all the way — not on top of the mountain, but like, I was underground buried.

"And so to be able to get up there on stage, and feel that love and give that love to them, receive it, it's going to be super-accomplished, and I know it's part of what I need to do and what I want to do."