I’ve played billions and millions of shows and heard people shout out freebird! freebird! …over and over. my response was always the same…sorry never heard of it. I finally heard it the other day when I was playing tunes with friends. And well…I don’t get the joke -why is it so funny? If it’s not a joke and people really just love that song, I don’t get that either. Who’s crazy me or the world?!