API calls would be worth a fortune
And Only Fan girls would come out to play
Replacing users with monkeys
And the users wept and cried

These lines all don’t fit into the song.

Each verse goes 3 lines, 3 lines, 4 lines, 3 lines, The Day the Music Died. For example:

"Did you write the book of love
And do you have faith in God above
If the Bible tells you so

Now do you believe in Rock and Roll
Can music save your mortal soul
Can you teach me how to dance real slow

Well, I know that you’re in love with him
'Cause I saw you dancing in the gym
You both kicked off your shoes
Then I dig those rhythm and blues

I was a lonely teenage broncin’ buck
With a pink carnation and a pickup truck
But I knew I was out of luck

The day the music died