Madonna is unstoppable. The singer, actress, entrepreneur, and yoga enthusiast, who turns 55 today, has had quite the career, winning everything from multiple Grammys to two Golden Globes. Because Madonna is such a beauty chameleon, she's started countless trends, and shows no sign of stopping. And since she's another year older today, browse this collection of the most iconic looks throughout the original Material Girl's career.
— Additional reporting by Miriam Lacey