Like many people, Lady Gaga was bullied in school. It's what she has done with that pain that has made her so inspiring to millions around the world.
She was called ugly, fat, weird and annoying. Classmates didn't understand why anyone would want to stay home and write music instead of go out and play. Then it got even more serious: when she was 19 she was sexually assaulted.
Those memories still hurt, even now that she's a mega-star. In fact, just two months ago, she revealed that she lives with PTSD as a result of the sexual assault.
Like no other artist, Lady Gaga has channeled her emotions into positive action, in both her music and her social activism. She champions the cause of all victims of human rights abuse, from LGBT teens to bullied children.
She writes songs about being different and the importance of owning it, such as "Born This Way." Her Oscar-nominated "Til It Happens to You" makes you share the pain of being sexually assaulted.