Gwen Stefani and Gavin Rossdale are ending their marriage after 13 years. The pop queen filed for divorce, citing irreconcilable differences and requesting joint custody of their three children. Rossdale, the frontman of ’90s band Bush, filed for the same terms simultaneously. The couple has no prenup, according to TMZ’s sources. “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,” they said in a joint statement.