Janet Jackson turns 46 today! During the 30-plus years of her showbiz career, Jackson has proved herself a master of reinvention, from her early days as a fresh-faced kid on Good Times and Diff'rent Strokes to her long, sleek Rhythm Nation 1814 look to her red curls for The Velvet Rope. Today, she celebrates her big day across the globe. "Thanks for the birthday wishes," she Tweeted. "I'm looking forward to spending it in Paris. It's such a special city for me." Click through the gallery to see her Hollywood transformation now.