From wikipedia:
The Invisible Man
Main article: The Invisible Man (song)
"The Invisible Man" is Taylor's first song on the album. The lyrical idea came from a book he was reading after which the beat instantly came to his head. May and Taylor commented (Queen for an Hour interview, 1989) that Taylor wrote part of the song in the bath (similarly to what happened with Freddie Mercury and "Crazy Little Thing Called Love" ten years before). The names of all four band members are "hidden" in the vocals: "Freddie Mercury" right before the first verse begins, "John Deacon" after the first verse, "Brian May" (repeated twice) before his guitar solo, and "Roger Taylor" (with the "r" rolled by Mercury to sound like a drum roll) after the lyric "look at me, look at me". Taylor "answers" with a drum fill. An unreleased version features a completely different middle-eight with Mercury singing alternate lyrics in the style of Elvis Presley.
The last bit about Elvis, true or a wiki edit joke?
Wikipedia.
That well known archive of knowledge that doesn't make things up and present incorrect facts.
(I'm basing this on other wikipedia entries, not just Queen)
I am, of course, being sarcastic.