Here are some facts/reviews about "The Man Who Sold The World" from songfacts.com :
This is a cover of David Bowie's "The Man Who Sold The World" form his 1970 album of the same name.
This is about a man who no longer recognizes himself and feels awful about it.
Some lyrical analysis: "We passed upon the stair" is a figurative representation of a crossroads in Bowie's life, where Ziggy Stardust catches a glimpse of his former self, (being David Bowie) which he thought had died a long time ago. Then he (the old David Bowie) says: "Oh no, not me. I never lost control." This indicates that Bowie never really lost sight of who he was, but he Sold The World (made them believe) that he had become Ziggy, and he thought it was funny (I laughed and shook his hand). He goes on to state, "For years and years I roamed," which could refer to touring. "Gaze a gazely stare at all the millions here" are the fans at concerts
For years, Bowie struggled with his identity and expressed himself through his songs, often creating characters to perform them. On the album cover, Bowie is wearing a dress.