Gwen Stefani, Gavin Rossdale divorcing after 13 years

Singer Gwen Stefani has filed for divorce from her husband of 13 years, Bush lead singer Gavin Rossdale.

TMZ.com said Monday that the No Doubt frontwoman, 45, is citing irreconcilable differences.

Rossdale, 49, and Stefani are each seeking joint custody of sons Kingston, 9, Zuma, 6, and Apollo, 1.

There is no prenuptial agreement, TMZ said.

"While the two of us have come to the mutual decision that we will no longer be partners in marriage," the couple announced in a statement, "we remain partners in parenthood and are committed to jointly raising our three sons in a happy and healthy environment."