The answer is STARRY-EYED
The corresponding square is house puzzle
   by Brian Tivol

These are all David Bowie songs.

  John, I'm Only Dancing                 ->  LI
  Fame                                   ->  FE
  Blue Jean                              ->  BU
  Let's Dance                            ->  TS
  Young Americans[*]                     ->  OM
  Ashes to Ashes                         ->  EH
  Boys Keep Swinging                     ->  OW
  Rebel Rebel                            ->  BE
  Life on Mars                           ->  LI
  Modern Love                            ->  EV
  Drive-In Saturday                      ->  IN
  Suffragette City                       ->  GI
  Jean Genie                             ->  NN
  Scary Monsters (And Super Creeps)[**]  ->  OT
  China Girl                             ->  HI
  Changes                                ->  NG

[*: The lyrics on the page read "Young American", singular, but
sometimes during the fade-out it's plural.]

[**: The lyrics on the page don't have an "and", but sometimes during
the fade-out you can hear one.]

The line "___ life but somehow believing in nothing" is from "Real
Cool World", and the missing word is STARRY-EYED.