Britney Spears Fires Security Team After Ex-Husband Crashes Wedding

It's out with the old and in with the new for Britney Spears' security team ... canning the squad who allowed her ex-husband to not only crash the wedding but get inside her home.

Sources close to the singer tell us she recently made the decision to fire the existing security team, and replace them with an all-new bunch. The move isn't totally surprising, but we're told it happened quickly after Thursday's fiasco.