X Marks the Spot: Exploring the Rarest and Most Radically Cool Songs with “X” in the Title

The letter X is the musical equivalent of a secret passage. It is the least common letter used in the English language, appearing in less than 0.5% of words. Naturally, when a songwriter decides to pin an “X” to the masthead of a track, it stands out. It feels edgy, cryptic, futuristic, or explosive.