From operatic highs to earth-shaking lows, these singers pushed the limits of what the human voice can do. Vocal range isn’t ...

Nicknamed “The Voice,” Whitney Houston had a 5-octave vocal range with high notes that often popped out amid her warm, rich and soulful singing.

Mariah Carey built an iconic career with her 5-octave vocal range, earning her endless awards and accolades. The legendary singer married actor and comedian Nick Cannon on April 30, 2008, and welcomed ...