I know we have talk about this subject on the forum before, but a recent study on wikipedia.org provided the following info, Voice. Celine Dion possesses a five-octave vocal range, and is often regarded as one of pop music's most influential voices.She has been described as a reigning Queen of Pop for her influence over the record industry during the 1990s, alongside Whitney Houston and Mariah Carey. know we have talk about this subject on the forum before, but a recent study on wikipedia.org provided the following info, Voice. Celine Dion possesses a five-octave vocal range, and is often regarded as one of pop music's most influential voices.