The lead singer of the band Rage Against the Machine. De la Rocha left the band in 2001 after he felt "they weren't taking enough musical
risks." His bandmates later formed Audioslave with
Chris Cornell. After Audioslave disbanded in 2007, Rage Against the Machine was revived and de la Rocha rejoined the band.
Vocalist and keyboardist of the alternative rap duo One Day as a Lion,
featuring former The Mars Volta drummer Jon Theodore.
Touring with the re-formed 'Rage Against The Machine', having just finished the Big Day Out festival concerts in Australia and New Zealand. (March 2008)
Released One Day as a Lion's self-titled EP. (July 2008)