... from the Yellow Submarine film (July 17, 1968) (2.32 MB, wmv, colour)
It was recorded during sessions for the single Lady Madonna, and one of the few Beatles song to revolve around a piano riff. During the recording, Paul started to bark without warning. The next lines (initially intended as "Hey Bullfrog") were changed mid-song to "Hey Bulldog". This served as the song's title. The song itself was recorded for the Yellow Submarine film, but initially appeared only in European theatrical prints. It was restored for a 1999 re-release.