Paul McCartney Blackbird - Yesterday Live in Australia 1975

Paul McCartney and Wings live in Australia in 1975. Paul sing two songs Blackbird(White Album) and Yesterday(Help! Album), There are very interesting Video but Paul in the song Blackbird sing: “MMMM“, and in the intro of Yesterday sing: “once a jolly swagman“ and he stop the song and smile, and begging the song.