My sister and I learn about Elvis

The gravestone of his mother Gladys 
has a Star of David on it designed 
by the King of Rock & Roll.
Imagine, we text, Elvis! Elvis! 
His great-great (two greats, we count)
grandmother Nancy was a Jewess 
from Lithuania, which makes Elvis
(by laws only Jews know) a Jew.
Weird, Elvis counts more than Einstein, 
Marx or Leonard Cohen but let’s face it:
The King's one of those eternal
mysteries our people need.