Go to Youtube for a listen.
Right after they say In Birmingham they love the governor
The back up vocalist then sing Boo Boo Boo {but not the lead singer} then the lead singer then sings now we all did what we could do..
If you were looking at a Lyrics page sometimes those type of added words don't show ups lyric sites are generally user posted.
Sometimes, people see/hear what they want to see/hear.
But, you are correct AFA the boo, boo, boo is concerned.