My Songs Know What You Did in the Dark (Light Em Up) - Fall Out Boy (lyrics) Ooh oh oh oh, ooh oh oh oh Be careful making wishes in the dark Can\u0027t be sure when they\u0027ve hit their mark And besides in the mean-meantime I\u0027m just dreaming of tearing you apart I\u0027m in the de-details with the devil So now the world can never get me on my level I just got to get you out of the cage I\u0027m a young lovers rage Gonna need a spark to ignite My songs know what you did in the dark So light em up up up, light em up up up Light em up up up, I\u0027m on fire So light em up up up, light em up up up Light em up up up, I\u0027m on fire Ooh oh oh oh (in the dark-dark) Ooh oh oh oh (in the dark-dark) All the writers keep writing what they write Somewhere another pretty vein just dies I\u0027ve got the scars from tomorrow and I wish you could see That you\u0027re the antidote to everything, except for me A constellation of tears on your lashes Burn everything you love Then burn the ashes In the end everything collides My childhood spat back out the monster that you see My songs know what you did in the dark So light em up up up, light em up up up Light em up up up, I\u0027m on fire So light em up up up, light em up up up Light em up up up, I\u0027m on fire Ooh oh oh oh (In the dark-dark) Ooh oh oh oh (In the dark-dark) My songs know what you did in the dark My songs know what you did in the dark So light em up up up, light em up up up Light em up up up, I\u0027m on fire So light em up up up, light em up up up Light em up up up, I\u0027m on fire Ooh oh oh oh (In the dark-dark) Ooh oh oh oh (In the dark-dark) Ooh oh oh