WORRIED BRITNEY ARMS HERSELF WITH ATTACK DOGS

WHO LET THE DOGS OUT?

Britney Spears, that's who-who-who! The pop princess just bought two German shepherd attack dogs to protect her 24/7 against stalkers, thugs and crazed fans! The killer canines (rumored to be even more vicious than Hollywood agents!) are undergoing training at an eight-week course that costs a whopping $10,000. Britney will attend some sessions at the prestigious California Canine Academy, where the dogs will learn to shadow her constantly -- and respond strictly to her commands! "Britney feels like her soaring popularity makes her vulnerable to anyone who may want to do her harm, so she's decided to step up her security team by adding two vicious attack dogs," said an insider. "When she's not on tour, the dogs will be on guard at her Louisiana and Beverly Hills homes."