The man who holds the Guinness record for the world's lowest voice can hit notes so low that only animals as big as elephants are able to hear them.
American singer Tim Storms who also has the world's widest vocal range can reach notes as low as G-7 (0.189Hz), an incredible eight octaves below the lowest G on the piano.
In fact the note is so low that even Storms himself cannot hear it.
"I can feel them though," he told CNN. "I kind of hear them in my head as far as the sound my vocal chords are making but, as far as the frequencies, it's something more or less that I feel."
Storms was born in Tulsa, Oklahoma, and raised in Waterloo, Indiana. He began his singing career in Christian music shortly after graduating.
While being raised in Waterloo, Indiana, Storms' musical affinity appeared at a young age. Just four days after graduating from high school he began his career in Christian music and has since appeared in a number of singing groups.
After an accidental meeting with an ear, nose and throat specialist at a concert, the singer learned of the biology behind his record breaking voice.
"He said that my vocal chords were about twice as long as normal - than he's used to seeing anyway - and the arytenoid muscles around my vocal chords, they had a lot more movement to them," Storms said.
Storm's voice has won him fame, awards and an international singing career. He was recently selected by an international talent search for a new choral piece called "Tranquility" that requires a singer who could hit a low E, the deepest note ever written for a choral composition.
Storm's incredible voice also made him a hot commodity in the Hollywood voice over business, where industry executives eagerly track down people with low voices to add drama to film trailers.
While Storms has held the record for the lowest voice for over ten years, he may soon break even his current record.
"I just keep getting lower the older I get," Storms told CNN.
Hear the World's Deepest Voice