There must be something in the water in Tinsletown! Everywhere you look another Hollywood couple are breaking up.

This time, it’s Gwen Stefani and rocker hubby Gavin Rossdale.

According to reports, Stefani has filed for divorce after 13-years of marriage to the Bush frontman. 

TMZ reveals the No Doubt star has also filed joint custody of their sons, Kingston (9), Zuma (6) and Apollo, who just turned one.

In a joint statement, the pair assure the split is amicable: "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."