Catherine Zeta-Jones melted fans' hearts this week as she shared a video of her niece Ava Zeta speaking Welsh.MORE: Catherine Zeta-Jones' controversial lunch will divide the nationIn the 52-second clip, the mother-of-two can be seen sitting in a large sofa chair with Ava on her lap, before telling her followers: "Hello everybody, I am here with my beautiful niece, Ava Zeta.