Speedo being a reference to The Cadillacs.
But his real name is Mister Earl.
I have found at least 25 references to popular songs in the lyrics of “Follow the Rock”:
1. Long Tall Sally—Pat Boone
2. Up on the Mountain—The Magnificents
3. Suddenly, There’s a Valley—Cogi Grant
4. Roll Over Beethoven—The Four Chaps
5. Shake a Hand—Faye Adams
6. Speedo—the Cadillacs
7. Blue Suede Shoes—Carl Perkins
8. The Flying Saucer—Buchanan & Goodman
9. Maybelline—Chuck Berry
10. Rock Around the Clock—Bill Haley & the Comets
11. My Boy Flat Top—Dorothy Collins
12. Band of Gold—Don Cherry
13. Stranded in the Jungle—The Cadets
14. Fools Fall in Love—The Drifters
15. 1,000 Miles Away—The Heartbeats
16. Blueberry Hill—Fats Domino
17. Rock and Roll Waltz—Kay Starr
18. Why, Baby, Why?—Pat Boone
19. All Shook Up—Elvis Presley
20. Pledging my Love—Johnny Ace
21. Party Doll—Buddy Knox
22. 99 Ways—Tab Hunter
23. Teenage Crush—Tommy Sands
24. Marianne—Terry Gilkyson & the Easy Riders
25. Don’t Be Cruel—Elvis Presley