The document provides a career overview of American singer Mariah Carey, describing her background, musical achievements, influential style, and evolution of her image over time as portrayed in her music videos from 1990 to 2008. It notes her five-octave vocal range, record-breaking chart success, and status as one of the best-selling music artists ever. It analyzes how her image transformed from a natural look early on to increasingly glamorous and sensual portrayals as she gained creative control and independence later in her career.