John is a married man. He has been married to love of his life Jordan since a long time. As a married couple, they welcomed their only child, a daughter, Eloise Ann at the end of 2015.
John received his formal education Davenport Ridge School. Later he joined Stamford Catholic High School and then Princeton High School. He began taking piano, the cello, and the guitar lessons but he hated taking those practices. Initially he dreamed to be a comedian but later he became more interested in music. He began performing in various garage bands and one of them was Blues Traveler. With the completion of his high school graduation, he joined The New School for Jazz and Contemporary Music. Their debut album, Blues Traveler was released in May 1990. He also continued his solo career from 1990. His debut solo album Zygote was released at the end of 1999. His net worth is expected to be in millions.