OldMacdonaldHadaFarm E I E I O ! Oh what a fun song Old MacDonald HadaFarm is ! You can hear and sing this great barnyard animal song with Boowa and Kwala. Old Macdonald Hada farm, and luckily he hada horse, cow, sheep and rooster who loved to neigh, moo, baa, and cock a doodle doo ! I'm so glad that Old MacDonald HadaFarm !