Okay, so this first track is twelve minutes of prog-rock and other stuff, so it's immediately not everypony's cup-of-Earl-Grey-tea. It's also not the most easily-likeable Mars Volta track out there, but it's currently my favourite after listening to it properly lately (I used to skip it before due to length). There are just so many hooks in this song if you have the patience to listen to it.
Also this, this brilliant remix of Miike Snow's Silvia.