Undoubtedly the best-selling female musical artist during the 1990s, Mariah Carey achieved her level of superstardom with her amazing five-octave voice. Her distinct voice enabled her to easily shift from singing glossy ballads to dance-pop with hip-hop inspirations. She moved to the city of New York when she was just 17 to pursue a career in music. Her albums sold millions throughout the globe. She has undergone several self-reinvention and has been able to continue a productive career in the industry despite her involvement in several controversies.