It's a Bo Didley song that he recorded in 1955. There are a number of versions.

Bo Didley Bo Didley have you heard
Papa's gonna buy me a mockin' bird?
If that mockin' bird don't sing
Papa's gonna buy me a diamond ring.
If that diamond ring don't shine
Papa's gonna buy me a bottle of wine...
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Bob Segar did the song in the 70s

Bo Diddley, Bo Diddley have you heard
Mama gonna buy you a mockingbird
If that mockingbird don't sing
She gonna buy you a diamond ring
If that diamond ring don't shine
Baby gonna take it to a private eye
If that private eye can't see
He gonna have to come an talk to me

Said hey Bo Diddley
Hey now Bo Diddley
Hey Bo Diddley

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