The New York Daily News is reporting that Britney Spears threw slacker hubby Kevin Federline to the curb and by "curb," I mean the Beverly Hills Hotel on Wednesday night, at the culmination of a "blazing row" between the new parents. Perhaps breaking the camel's back was K-Fed's alleged nixing of his wife's plan to take over for Christina Applegate in Broadway's Sweet Charity. Spears' reps had no comment on the story.