FlashFeed

Lady Gaga, an iconic and enigmatic artist, has left an indelible mark on pop music. She has not only revolutionized the genre itself but reached millions by opening up about her trauma and illness. At 40, she continues to redefine industry standards.

As iconic as undefinable, Lady Gaga has left quite a mark on the world of music. Here's how she reinvented pop — and reached millions by opening up about her trauma and illness.