Separated at birth

Katt was just a normal 17 year old girl who grew up in a quite town called Kansas. But what she didn't know was that she was switched at birth and that she was the long lost twin of the Louis Tomlinson of one direction.Will she be finally be reunited with her real family? What will she do when she experiences love, hate, fame and will 1/5 of one direction fall for her ??