Jamie Lynn Spears, 30, has shared a mirror selfie while rocking a red blazer and matching mini skirt. The younger sis of Britney Spears, 39, took to Instagram on July 18 to share a snap of herself in the plunging, plaid top, which she paired with matching red pumps. She styled her long blonde locks in loose waves, and offered the camera a sultry pout while posing at what appeared to be a fitting.