People are going to interpret this as a comment on celebrity culture, but it's clear that this is about alien visitations and MIBs.
You see the classic MIB in the supermarket and their trademark archaic black sedan in the alley, and the lyrics about sexless figures watching us in "our primitive world" or menacing us while we sleep or lurking in the dark on the stairs pretty clearly spells it out.
As does the photo of Bowie from The Man Who Fell to Earth on the cover of the fake tabloid. One of Bowie's studio players said that one of the tunes they were working was originally called "Born in a UFO"- I wonder if this is it.