I Heard a Voice is the first live DVD from AFI that was released on December 12, 2006. The concert was filmed at the Long Beach Arena in Long Beach, California on Friday, September 15, 2006. Part of the Decemberunderground Tour, the crowd was the largest AFI had ever headlined with over 13,000 people in attendance. The title of this DVD is lifted from a line of poetry in the decemberunderground CD booklet. Underneath the song 37mm, it says: "The power went out. I turned on the radio. The power went out. I turned on the radio. The power went out. I turned on the radio....I heard a voice." The moth on the case is also from the decemberunderground booklet.

Rage Against The Machine performed their last shows on September 12th and 13th 2000 prior to their original break-up. Having paved the way for many alternative bands in the 90s, and proving once and for all that rock and politics do mix, the band decided to quit while they were ahead. Fortunately a camera crew were on hand to capture the action from their emotional farewell shows, providing an intense document of the final hours of the band. All the groups hits are present, including 'Bombtrack', 'Bulls on Parade', 'Killing In The Name', and many more.