Heidi Klum has caused a stir by frolicking topless on the beach in Mexico with her 27-year-old art dealer boyfriend Vital Schnabel. Here the 40-year-old supermodel reveals how a hectic work schedule and the love of her children have kept her going through the hard times and how she's now loving life as a single parent. Heidi talks about her role a talent show judge ahead of the new season of America's Got Talent, whether and of her four children have the same star quality a their famous parents and she reveals all about her beauty and diet regime.