Which male singer has the highest vocal range?

The male singer often cited as having the highest vocal range is Adam Lopez, an Australian artist known for his extraordinary ability to reach notes in the soprano range, reportedly spanning over six octaves. Another notable mention is Mike Patton, the lead vocalist of Faith No More, who is recognized for his versatile vocal abilities and impressive range. However, vocal range can vary with definitions and measurements, leading to differing opinions on who holds the title.