JoJo's Bizarre Adventure: Aja and the Steely Dan Inspiration
The crux around which Part Two of JoJo’s Bizarre Adventure: Battle Tendency revolves is the Red Stone of Aja or The Super Aja, a miraculous gemstone that the Pillar Men were after. It's a stone so powerful that it would make them invincible. The Red Stone of Aja is named after the Steely Dan album and song "Aja."
Source: rollingstoneindia.com