Justin was born in rural Iowa. He began violin lessons when he was 3, moved onto piano when he was 5, and began programming electronic instruments when he was 10 as well as picking up the drums. Justin attended Graceland University in Lamoni Iowa as a percussion performance major and was section leader and percussion captain for both symphonic and marching bands as well as set drummer for the university's jazz combo. Justin relocated to Los Angeles to attend Musicians Institute for music production and recording. He graduated from MI in 2007 and began writing music for television in 2010.