This song can have verses added to suit various occasions. It's closely related to the Afro-American spiritual "Don't you let nobody turn you round", and there are many variations in use.
Lyrics:
Ain't gonna let nobody turn me around, Turn me around, turn me around!
Ain't gonna let nobody turn me around;
Keep on a-walkin'
Keep on a-talkin',
Marchin' down to freedom's land.
Repeat the verse as many times as you like, replacing "nobody" with any of:
segregation
no jail
no police
no killin's
no despair
names of individuals, eg Principal Skinner
and any other words that fit the theme of the use of the song.