In the second in her series of Advent interviews, Fern Britton talks to the girl from the Welsh valleys who has become a global singing star. Katherine Jenkins speaks candidly about her upbringing, the loss of her father, her love of music and her extraordinary determination to succeed. She has sold millions of albums and found fame and fortune - but what role does her Christian faith play? Friends and family give their unique perspective, and Fern explores the values that guide the singer's life.