6. Cat Power, "Metal Heart"
A quiet song that can chill your bones even at low volume. Chan Marshall chronicles a long bleak night of fear, with her doomy Georgia whisper and her spidery guitar. "Metal Heart" is the centerpiece of her fourth and finest album Moon Pix, with the Dirty Three's rhythm section providing the pulse. She'd always come on as a fragile spirit, in harrowing moments like "Nude as the News" on What Would The Community Think? But in "Metal Heart," she spends the night scaring her demons away, wailing, "How selfish of you to believe in the meaning of all the bad dreaming." It's all in the details – the way she sighs "and you will be chaaanged," the way she reaches for a gospel hymn and then lets go, the way her guitar locks into those resolute chords at the end, in her hour of darkness.