Maynard James Keenan @mjkeenan today is his 50th birthday He is the lead vocalist of the rock band Tool http://toolband.com @ToolMusic He is the lead vocalist of the rock band A Perfect Circle http://aperfectcircle.com @aperfectcircle Hit Parader ranked Keenan #21 of the 100 Metal Vocalists of All Time (2006) Great Vocalist