The fifth and final song of the album, "Cassandra Gemini", clocking at 32 minutes and 32 seconds is to date the longest studio song released by The Mars Volta. Rodriguez-Lopez said of the song: "Ever since I was a teenager, and had various listening experiences with the likes of King Crimson, John Coltrane, and Miles Davis's "Bitches Brew", I've always wanted to do something like "Cassandra". Something deformed and out of control. Something enormous and violent, a whole album fitted into one composition. Something ruthless that no one can remain careless to."