[2] Mazur has two sisters and two stepsisters and grew up in Richmond, Michigan, attending Cardinal Mooney Catholic College Preparatory High School in Marine City.

At the commencement ceremony, he performed a solo acoustic guitar version of "Think About It," written by Herb Alpert, Will Calhoun, and Doug Wimbish.

Mazur attended his first Our Lady Peace concert as a fan on July 10, 2001, at the House of Blues in Los Angeles.

Mazur replaced founding member Mike Turner as guitarist for Our Lady Peace during the recording of the band's fifth album, Gravity.

[2] Mazur was selected after the band sorted through thousands of audition tapes, CDs, videos, and DVDs, in search of a new guitar player.