John is the older brother of Shaggy 2 Dope. He was born January 18, 1973 and passed away on November 20, 2015.

In 1989, Joseph Utsler, as Kangol Joe, Joseph Bruce, as Jagged Joe, and John Utsler, as Master J, formed the group JJ Boys and released the single titled "Party at the Top of the Hill" under the name of JJ Boys, but the group did not pursue a serious career in music. The following year, the trio reemerged as Inner City Posse, using the stage names Violent J, 2 Dope, and John Kickjazz, and began performing at local night clubs. After releasing several albums, the group hired record store owner Alex Abbiss as their manager, who established the Psychopathic Records record label with the group in 1991. Later that year the group released the self-produced EP entitled Dog Beats.

John Utsler left the group in 1992, and Insane Clown Posse has since been composed of Joseph Bruce and Joseph Utsler, who perform under the respective personas of the murderous, wicked clowns Violent J and Shaggy 2 Dope. The album Carnival of Carnage features the only recorded appearances of member John Kickjazz, who left the group prior to the album's release. John Kickjazz appeared on the songs "Your Rebel Flag," "Psychopathic," "Blacken' Your Eyes," "Wizard of the Hood," "Red Neck Hoe," and "Taste."

You can read the story about John Utsler aka John Kickjazz HERE.