It’s official: 2015 is not a good year for celebrity couples. Some fans haven't gotten over the breakups of country stars Miranda Lambert and Blake Shelton and Hollywood actors Jennifer Garner and Ben Affleck, and now there’s a new famous duo headed for splitsville: No Doubt star Gwen Stefani and Bush frontman Gavin Rossdale.

Stefani filed for divorce from the English rocker, citing irreconcilable differences, after 13 years of marriage, TMZ reported Monday. The couple issued a joint statement: "While the two of us have come to the mutual decision that we will no longer be partners in marriage, we remain partners in parenthood and are committed to jointly raising our three sons in a happy and healthy environment." 

Stefani, 45, and Rossdale, 49, want joint custody of their three children: 9-year-old Kingston, 6-year-old Zuma and 1-year-old Apollo.

Gwen Stefani Musician and "The Voice" judge Gwen Stefani at the 2014 People Magazine Awards. Photo: Reuters

The couple did not sign a prenuptial agreement when they wed in 2002 after six years of dating, TMZ wrote. Stefani is worth an estimated $80 million and Rossdale is worth a reported $35 million. The “Hollaback Girl” singer asked to deny her estranged husband spousal support, the publication said.

The impending divorce is a shock for most fans and Stefani didn’t hint at marriage woes during an interview with Cosmopolitan magazine earlier this year. "We go through so much together -- it's a miracle that we could stay together this long," she said, according to People magazine. "It's good to have those days when we both do our own things. I think that's what keeps relationships going, when both people can be themselves and have their own individuality."

Their marriage, like those of many celebrity couples, produced its share of cheating rumors. Rossdale was accused of cheating on the platinum blonde with the kids’ nanny in 2012; the story wasn’t true, a source told E! News at the time. “He is not having an affair with his nanny,” an insider said. “He’s with her and the kids in a photo. It’s harmless.”

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