E-I-E-I-O

Karsten loves to play with his tractor and animals. When he pushes down the driver, the tractor sings "Old McDonald". The other day Karsten started saying E-I-E-I-O when he was looking for the tractor. I was so surprised he knew this because we had never really repeated that portion of the song for him. He also says E-I_E-I-O when he wants to play with his See and Say...he's a smartie!