Mama's gonna buy you a mockin'bird

 If that mockin'bird don't sing
 Mama's gonna buy you a diamond ring

 If that diamond ring turns brass,
 Mama's gonna buy you a looking glass

 If that looking glass gets broke
 Mama's gonna buy you a billy goat

 If that billy goat don't pull,
 Mama's gonna buy you a cart and mule

 If that cart and mule turn over
 Mama's gonna buy you a dog named Rover

 If that dog named Rover won't bark
 Mama's gonna buy you a horse and cart

 If that Horse and Cart fall down,
 Then you'll be the sweetest little baby in town