Aaliyah created an album.
Aaliyah . Hankerson introduced her to R. Kelly , who became her mentor , as well as lead songwriter and producer of her debut album , Age Ai n't Nothing but a Number . The album sold three million copies in the United States and was certified double platinum by the Recording Industry Association of America ( RIAA ) . Aaliyah has sold an estimated 24 to 32 million albums worldwide .