Okay, since we're picking on the Beatles, my DB came up with this diddy when we were kids. In WDW as a matter of fact.

After Mom heard him singing it he spent a lot of time back in the hotel...
To the tune of "Yesterday"
Leprosy...
There are pieces falling off of me...
I'm not half the man I used to be...
And bringing this full circle with the old TV show discussion. "Letter B" from Sesame Street:
When I find I can't remember
What comes after
"A" and before "C,"
My mother always whispers,
"Letter B."
She told me "B" starts
"Big" and "bird" and
"Ball" and "bat" and "battery."
Yes, buh-buh-buh-buh-buh means
Letter B.
Letter B, letter B, letter B, letter B.
She whispers "Buh-buh-buh means Letter B."
And when I feel downhearted,
Mother whispers
"B" words constantly,
Like "bib," "Bob," "Bulb," and "bubble,"
Letter B.
Now in my hour of darkness
There's a sound I know will comfort me,
It's the buh-buh-buh-buh-buh of
Letter B.
Letter B, letter B, letter B, letter B.
My mother whispers "B" words,
Letter B.
Letter B, letter B, letter B, letter B.
My mother whispers "B" words,
Letter B.
Letter B, letter B, letter B, letter B.
Bless the "buh-buh" sound of
Letter B.