Tina Leung Kwok-hing, better known by her stage name, Ti Na, is publishing a book this month that lifts the lid on her failed marriage. 'I am going to air my dirty laundry in my new book, like how I drove my mother crazy by becoming pregnant before getting married,' Leung, 63, said. 'There are a lot of teenage mothers about these days and I want to warn them about my own experience.' With her voluptuous body, Leung was usually cast in seductive roles. In 1967 she caused a shock by becoming pregnant while still unmarried, but wed swimming coach Ma Yik-cheung the same year. Leung gave birth to a daughter, Tin-yu, but the marriage failed and the couple divorced in 1972. Ma, said to be Tin-yu's father, publicly declared she was not his child after hearing she had had a sex-change operation. Tin-yu finally became Michael and settled in Europe. Leung quit acting and started a telecommunications business but returned in 2005 to host A Century of China, a TVB Jade documentary. To shield her child, Leung was at first reluctant to disclose details of her divorce. However, it was Michael who told her to be frank. 'I asked him if he would mind. He not only told me he wouldn't, he insisted I write about the divorce,' she says.