Stefani filed for divorce from the Bush frontman on Aug. 3, 2015, citing "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 couple said in a joint statement to ET. "To that end, we respectfully request privacy from the media during this time."
The No Doubt lead singer met her future husband when her band toured with Bush in 1995. They married in 2002.