"My Songs Know What You Did in the Dark (Light Em Up)" is a song written and recorded by American rock band Fall Out Boy, released as the lead single for their fifth studio album, "Save Rock and Roll".
«My Songs Know What You Did in the Dark (Light Em Up)» — песня американской рок-группы Fall Out Boy, изданная в качестве первого сингла с их пятого студийного альбома "Save Rock and Roll" 4 февраля 2013 года.