Richard Dyer's star theory proposes that celebrities are constructed for financial and institutional reasons. The theory includes three categories: constructed stars who gain popularity through media promotion rather than real personality; commodity stars whose public image is crafted to sell merchandise; and ideologists who act as role models through their behavior and charitable causes. Justin Bieber exemplifies all three categories as his early social media promotion constructed his stardom, his merchandise sales make him a commodity star, and his charity work positions him as an ideologist.