42 years old (Born on January 01, 1983)
Happy Birthday, Siobhan! From dazzling us all as FHM's unforgettable 2005 Girl Next Door to continuing your journey with grace and charm, you've certainly proven that beauty and humor never go out of style. Your timeless elegance makes birthdays seem like just another excuse for cake—though honestly, who needs an excuse?Here's wishing you a day filled with laughter that's louder than any photoshoot blooper reel and joy brighter than the flashbulbs you're accustomed to. May this year bring even more memorable moments (and perhaps fewer awkward wardrobe malfunctions). Keep shining bright—you truly are Australia's favorite girl next door!