On January 17, 2008, The Mars Volta performed "Wax Simulacra" on the Late Show with David Letterman, marking a significant moment in the band's career shortly after the release of their album *Amputechture* (2006) and just before their next studio album, *The Bedlam in Goliath* (2008). This performance showcased their avant-garde rock style, characterized by complex arrangements and energetic musicianship. The band was known for their dynamic live shows, and appearing on a major platform like Letterman highlighted their increasing visibility in the mainstream music scene. Interestingly, "Wax Simulacra" was nominated for a Grammy Award for Best Hard Rock Performance, reflecting the band's critical acclaim and innovative approach to music during this period. This performance exemplified their significance in the progressive rock genre and their ability to captivate a wider audience.