Did you know singing star Rhianna was a member of her high school military cadet corps? That despite earning millions for her movie roles, Dakota Fanning has never received an allowance? That Twilight's Robert Pattinson was routinely dressed up as a girl by his sisters? The biographies included in Superstars of the 21st Century are filled with little-known facts like these, as well as career highlights and real insights into the daily lives of this generation's iconic figures.