What Lies Under William Penn's Hat?

What Lies Under William Penn's Hat? a song by Phil Coley on BeMusic

Buck O'Neil by Danny Mack,
From An Orphan To A King by Danny Mack,
Yankee Stadium by Danny Mack,
God Is A Mets Fan by Danny Mack,
Tony C by Danny Mack,
Dice K & And Okajima by Danny Mack,
The Bravest Red Sox Fans by Danny Mack,
Jackie Robinson's Legacy by Danny Mack,
Roberto Clemente by Danny Mack,
Howlin' Hilda by Danny Mack,
Ed Delahanty by Danny Mack,
Our Cubbie Curse by Danny Mack,
The Curse Of William Penn by Danny Mack,
What Lies Under William Penn's Hat? by Danny Mack,
Ichiro by Danny Mack,
The Greatest Home Run King by Danny Mack,
I'm Still Standing by Danny Mack,
Be A Champ Like George by Danny Mack,
The Ballad Of Paul Bunyan by Danny Mack,
We Honor You by Danny Mack,
If This Rifle Could Talk by Danny Mack,