Did Paul McCartney sing Blackbird?
Yes he did.  An absolutely beautiful arrangement
I believe is wrote the lyrics to the song as well. Do you know the history behind the song?
Yes it's based off of the struggle of civil rights in the 60s
Interesting. It is a beautiful and moving song. I didn't realize the meaning behind it.
It has a springtime feel, but listening to the lyrics with that in mind opens your eyes to something far more interesting
True. I can see why this is one of your favorite songs. Do you like many of the Beatles songs?
I think that their symplicity holds a strong presence in the music industry still today.  I like especially "The long and winding road" and "While my guitar gently weeps"
I too still listen to many of their songs. Such great songs. I admit I will listen to Blackbird a bit differently now that I know the meaning behind it and the politics involved.
I felt like I revamped my joy for their music after the movie "Yesterday" came out.  
I read somewhere that Paul McCartney at first did not like the movie idea.