The Simpsons Girl is Lisa Simpson, a fictional character from the long-running animated television series The Simpsons. She is the middle child of Homer and Marge Simpson, and the sister of Bart and Maggie. Lisa is an 8-year-old girl who is highly intelligent and musically talented. She is a vegetarian and an environmentalist, and often speaks out against injustice. Lisa is known for her strong sense of morality and her passion for knowledge.