Singers Gwen Stefani and Gavin Rossdale to divorce

Singer Gwen Stefani has filed for divorce from rockstar husband Gavin Rossdale after 13 years of marriage.

According to TMZ and People.com, In her divorce petition, Stefani, 45, cited irreconcilable differences and asked for joint custody of the couple's three children, 9-year-old Kingston, 6-year-old Zuma and 1-year-old Apollo. Rossdale, 49, filed his response at the same time and also asked for joint custody.

Neither Stefani nor Rossdale's attorneys immediately responded to emails seeking comment.

People.com reported that the couple has been together for about two decades, meeting when Stefani's band No Doubt toured with Rossdale's band Bush in 1995. They dated for six years before they wed in 2002.

"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 told the website in a statement.