Data Insight
John Mayer writes virtually all of his own material, usually as the sole credited lyricist and composer, with occasional co-writes alongside longtime collaborators like producer-bassist Pino Palladino's circle, Steve Jordan, and a handful of guests. The data places him at the top end of the authorship scale among pop-crossover artists: outside writers appear only on isolated covers and co-writes, not as the engine of his songs.