- Who
- Amirhossein Molaei
- What
- 5989 hertz(es)
- Where
- Iran (Tehran)
- When
The highest vocal note by a male is F# in the 8th octave (F#8, 5989 Hz) and was achieved by Amirhossein Molaei (Iran) in Tehran, Iran, on 31 July 2019.
Amirhossein had been working on his whistle register for years to prepare for this attempt.
