Christopher Joseph Fronzak, also known as Fronz or Fronzilla, is an American musician, musician, record label owner, clothing designer, and adult film actor, best known as a singer. main and founding member of metalcore / rap metal band Attila. In addition to his work at Attila, he is also a director of the Stay Sick Recordings label and the Stay Sick Threads clothing line.

Attila's frontman in the American deathcore band. They released their most popular album About That Life in June of 2013, peaking at #22 on the Billboard 200 chart. Fronzilla is his Facebook handle, and he has over 1.4 million followers.