"Ob-La-Di, Ob-La-Da"
   is a song by The Beatles originally released on
the double-disc album The Beatles.  The song
was written around the time that reggae was
beginning to become popular in Britain. The tag
line "ob la di ob la da, life goes on, bra" was an
expression that Nigerian conga player Jimmy
Scott, an acquaintance of McCartney, often used.
  According to studio engineer Geoff Emerick,
John Lennon openly hated the song, calling it
"Paul's granny shit". After leaving the studio
during recording of the song, (after several days
and literally dozens of takes of the song, trying
different tempos and styles) Lennon returned
stoned, went immediately to the piano and played
the opening chords much louder and faster than
they had been played before. He claimed that was
how the song should be played, and this is the
version they ended up using