Jason Popson

Jason Popson, also known by his stage name “J. Mann”, is a vocalist for alternative metal band Mushroomhead, along with Steve Rauckhorst and Jackie LaPonza.
He is one of the only two remaining members of the original line-up, the other being Steve “Skinny” Felton.
He temporarily left Mushroomhead from 2004 to 2013, citing “personal reasons”, and picked Waylon Reavis as his successor, until his comeback on 2014’s The Righteous & The Butterfly, which is the only album on which he performed with both Reavis and Jeffrey Nothing.