Gregory John Puciato (born March 27, 1980) is the lead singer of the band The Dillinger Escape Plan and the supergroup Killer Be Killed. He is known for his reckless live performances, wide vocal range, and outspoken views, having caused controversy due to both performances and interviews. He joined The Dillinger Escape Plan in September 2001 and first performed with the group weeks later at the CMJ music conference in October 2001.