Mariah Carey has the greatest voice of all time, her astounding 5 octave range, along with the fact that she can belt out notes like no tomorrow prove this, she has sold over 150 million copies worldwide, and has had 15 #1 singles, and after 14 years in the music industry she still has a voice, selling power and a big fanbase, amazing.
An actual company that once produced instrumental music for business use. Now mixes original artist music for almost every major company (and small ones) in the world. The name comes from Music + Kodak, NOT Music + Prozac.
Muzak hasn't produced elevator music in decades - so blame someone else.