Simons Cowell's niece

Slight one Direction AU where Simon Cowell's sister dies and he now has to take care of his niece and two nephews. His Niece is a year younger than the boys of one direction what happens when one of them has feelings for her and she gets a recording deal. How will Simon handle his niece falling in love with one of them and how will the couple manage with both of them in the music industry.