Stargirl by Jerry Spinelli
Leo Borlock follows the unspoken rule at Mica Area High School: don't stand out — under any circumstances! Then Stargirl arrives at Mica High and everything changes — for Leo and for the entire school. After 15 years of home schooling, Stargirl bursts into tenth grade in an explosion of color and a clatter of ukulele music, enchanting the Mica student body.
Review from School Library Journal:
High school is a time of great conformity, when being just like everybody else is of paramount importance. So it is no surprise that Stargirl Caraway causes such excitement and confusion when she arrives at Mica High in Arizona. Initially, everyone is charmed by her unconventional behavior- she wears unusual clothing, she serenades the lunchroom with her ukulele, she practices random acts of kindness, she is cheerleader extraordinaire in a place with no school spirit. Naturally, this cannot last and eventually her individuality is reviled. The story is told by Leo, who falls in love with Stargirl's zany originality, but who then finds himself unable to let go of the need to be conventional. Spinelli's use of a narrator allows readers the distance necessary to appreciate Stargirl's eccentricity and Leo's need to belong to the group, without removing them from the immediacy of the story. That makes the ending all the more disappointing-to discover that Leo is looking back imposes an unnecessary adult perspective on what happened in high school. The prose lapses into occasionally unfortunate flowery flights, but this will not bother those readers-girls especially-who will understand how it feels to not quite fit the mold and who attempt to exult in their differences.