Jerry Zajac, better known by his stage name JZAC, is a rapper from Derry, New Hampshire. Both of his parents are from Poland and moved to the United States before he was born on March 6, 1991.

He is a part of the rap group TRIIIBE Entertainment.

He graduated from Plymouth State University.

He started making music in 2011, the same year he dropped his first two mixtapes on DatPiff, The Rough Draft and 1990 Something. His third mixtape, Commencement, was released on Bandcamp in 2013.

In 2016, JZAC released his first full-length album, Congratulations.