Amanda Holden has rocked a plunging neckline on her latest outfit after suffering an unfortunate wardrobe malfunction.The 49 year old rocked a striking polka dot dress as she left Global radio studios on Thursday morning. Britain's Got Talent judge Amanda presents the Heart breakfast show with Jamie Theakston from the studio in London's Leicester Square every weekday.The stylish beauty often wows with her outfit choices, with her latest effort being no exception.