Gwen Stefani and Gavin Rossdale have announced their decision to divorce following 13 years of marriage.

Gwen Stefani, Gavin Rossdale Split

Stefani and Rossdale released a statement Monday to reveal their divorce, as well as their continued commitment to be attentive parents to their three sons – Kingston, 9, Zuma, 6, Apollo, 17 months. The musicians, who are seeking joint custody of their children, cited irreconcilable differences.

“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,” the statement reads. “To that end, we respectfully request privacy from the media during this time.”

Though the divorce seemed to come out of the blue for the No Doubt singer and Blur rocker, sources close to the couple say that they had been in a bad place for awhile.

“[The divorce] was a long time coming,” an insider told Us Weekly. “It only looks sudden, but everything was worked out months ago so paperwork could be filed and the marriage could be ended quickly and easily.”

Now that they’re officially moving forward with the divorce, the erstwhile pair is devoted to co-parenting their sons.

“Their priority is making sure they maintain a safe and secure home for their children regardless of what’s happening,” a source close to Stefani tells People. “When you’re separated and have kids, you’re much more emotionally invested.”

“This is not a family that mostly relies on nannies,” the source added. “Gwen and Gavin are great parents and mostly handle school drop-offs and pick-ups themselves. Gavin is a jokester and often has the boys doubled over with laughter and Gwen is very nurturing. She often shows up to afternoon business meetings with Apollo napping in a baby carrier.”

Stefani and Rossdale wed in September 2002 after seven years of dating.

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