I was recently introduced to JoJo's Bizarre Adventure and noticed several musical references that seemed out of place for the setting of the first "part" Phantom Blood.
- One of the supporting characters is named Robert E. Speedwagon (oddly similar to REO Speedwagon)
- An antagonist, Dio shares the name of a heavy metal superstar Ronnie James Dio
- One of the mentors to the warriors is Master Tompeti (no heartbreakers)
- The closing theme is from 1972 Yes! Turnabout
I'm sure there are many other references that I have not seen yet (please be mindful of spoilers).
Is there any in-universe reason for these names or are these somewhat random Easter Eggs (perhaps to introduce great music to a younger generation)?