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World records and extremes of vocal range. 1  The highest vocal range in the world, according to the Guinness Book of World Records, is that of Georgia Brown; a Brazilian female singer who produces unusually high pitches using a whistle register. Her range extends eight octaves, from G2 to G10.
The list took data from the Rolling Stoneâs 100 Greatest Singers of All Time from 2008. It also includes current artists from the list of nominees at the Billboard Music Awards 2014. Apart from vocal range, the chart also ranks the singers according to highest note and lowest note.And itâs important to note that Mariah does, in fact, hit the highest note of all time, with Cristina Aguilera coming in second.Axl Rose topped the lowest note chart, beating out the icon of deep-voiced crooning, Barry White.nd itâs important to note that Mariah does, in fact, hit the highest note of all time, with Cristina Aguilera coming in second. Axl Rose topped the lowest note chart, beating out the icon of deep-voiced crooning, Barry White.