Delta Goodrem stood out from the crowd in a bright Dior dress and floral garland at the Melbourne Cup today. The musician is an ambassador for Swisse Vitamins and attended because she had a commitment to perform, but after suffering a leg injury late last week Christie Whelan stepped in to sing Delta's song "Together We Are One." Delta had an accident with her vocal steamer on Friday afternoon and burned her leg just before her Sydney performance, and while she soldiered on with the first hour of the concert, the pain became too much and she had to stop. (Instead of heels she opted for ballet flats today.) Delta also has two performances in Melbourne this week. Weigh in on all the Melbourne Cup celebrity style on our fashion and beauty polls.