The Count Five were a garage rock band from San Jose, California.
They started off in 1964, founded by John "Mouse" Michalski and Kenn Ellner, two high school friends who had previously played in several short-lived outfits. After going shortly under the name of The Squires and several line-up changes later, the Count Five were born, with Roy Chaney taking over vocal duties, Irish-born John "Sean" Byrne on rhythm guitar and Craig "Butch" Atkinson on drums.
Almost from the start, they had a trademark song with "Psychotic Reaction" which was to become their one and only top-10 hit. The song was initially devised by Byrne, with the group refining it over the next time and turning it into the highlight of their live sets. Regarded from today's point of view, "Psychotic Reaction" is now a bonafide garage-rock classic, unashamedly borrowing on the style of contemporary bands and artists like The Standells and The Yardbirds.