Back to bare: Dannii Minogue shows off her post-baby body in one-piece swimsuit

By ANDREA MAGRATH Keeping warm: Despite the sunshine and high-twenties forecast, Dannii complained of 'icy winds' and wrapped up in a dressing gownIt's a hard life for a Marks & Spencer model.Dannii Minogue kept her fans back in the U.K. green with envy today as she lounged on the beach in Miami.The 39-year-old showed off an enviable post-baby body in a purple one-piece as she filmed the summer...