Testify (Rage Against the Machine song)

"Testify" is a single by rap metal band Rage Against the Machine off their third studio album The Battle of Los Angeles.
The cover of the single was taken from the 1968 Olympics Black Power Salute. The song's lyrics notably make reference to George Orwell's novel 1984 through use of "The Party" slogan "Who controls the past (now), controls the future. Who controls the present (now), controls the past." The song is a playable track on Rock Band 2.
Live performances
A song titled "Testify" was performed at the KROQ Almost Acoustic X-Mas, 12.12.1993. The song is completely unrelated to the Battle of Los Angeles track except for the title. Although the song was played only this once and disappeared, some of the lyrics were used for "Down Rodeo" and the final version of "People of the Sun."
"Testify" made its live debut on January 28, 1999, at the Continental Arena in East Rutherford, NJ. While the instrumental part was identical...