I'm curious about the meaning of some of the lyrics in this song. I know the basic story, he was booed off the stage at a Madison Square Garden concert in 1971 for trying to play some of his then current songs. I'd just like to know some of the details and get some clarification on a few lines.

The fourth line of the second verse reads: Mr. Hughes hid in Dylan's shoes wearing his disguise
Huh? Who is Mr. Hughes? How does one hide in (presumably Bob) Dylan's shoes? What disguise? Why?

Third verse, line one: Played them all the old songs, thought that's why they came
Obviously he didn't play ALL of his old songs, but how many did he play? Was the negative audience reaction strictly from not wanting to hear his new stuff, or was some of it also from the lack of older hits?

Third verse, line three: I said hello to "Mary Lou", she belongs to me
Having learned that he had some chart action in 1970 with his cover of Dylan's "She Belongs to Me," I wonder if this line should read "..."Mary Lou," "She Belongs to Me,"....In other words, was this--she belongs to me--a way of saying that "Hello, Mary Lou" was one of his hits, or a way of saying that he sang both of those songs that night?

He mentions appearance three times in the song (...didn't look the same..., etc.). Was it really that big of a deal to the audience? Did they start booing before he sang just because he didn't look like he did in 1960?

Fourth verse, line four: But if memories were all I sang, I'd rather drive a truck
Okay, fine philosophy, and understandable. Harder to understand--why hire on to a show featuring the likes of Chuck Berry and Bo Diddley, which clearly was intended to be a nostalgia concert, with that attitude? Were 50's/60's rock and roll nostalgia events so new in 1971 that one wouldn't reasonably be aware that their audiences didn't want to hear any newer music, or was Nelson just very naive about that?