The Beatles - Hey BulldogDuring the recording, Paul McCartney started to bark without warning. The next lines, initially written as “Hey Bullfrog”, were changed mid-song to “Hey Bulldog”. This became the song’s title.Geoff Emerick, the Beatles’ engineer, would subsequently claim this was the last song the band recorded that featured a team dynamic with enthusiasm from every member. When the group reconvened in the studio in May 1968 for the The Beatles sessions, their group cohesion had already been undermined by the business, artistic, and personal differences that would culminate in their eventual breakup.