Britney Spears issues scathing response to sister Jamie Lynn following knife allegations: ‘You’ve stooped to a new low’

Britney has hit out at her sister again (Picture: Disney)Britney Spears has issued another scathing response to her sister Jamie Lynn following comments she made about the musician in her new book.In her memoir, Things I Should Have Said, Jamie Lynn, 30, claims Britney once pulled out a knife and locked the two in a room.The pop star, 40, took to Twitter to release another statement in response to her sister’s claims, directly telling her she has ‘stooped to a whole new level of low.