Old MacDonald Song Lyrics. Old MacDonald had a farm, eee-yi-eee-yi-oh. And on this farm he had a cow, eee-yi-eee-yi-oh. With a moo moo here and a moo moo there. Here a moo, there a moo, everywhere a moo moo. Old Mac Donald had a farm, eee-yi-eee-yi-oh. Old MacDonald had a farm, eee-yi-eee-yi-oh. And on this farm he had a pig, eee-yi-eee-yi-oh.