Lizzie Velasquez suffers from a rare syndrome that prevents her from gaining weight. After being called the "World's Ugliest Woman," she made a triumphant comeback, rising to become a motivational speaker and teaching everyone the meaning of beauty.

Watch more clips: http://ktie.tv/1bJl2WX
Follow Katie on Facebook:   / katiecouric  
Follow Katie on Twitter:   / katiecouric  
Subscribe to Katie's channel: http://ktie.tv/1eUPgMf