Provided to YouTube by Universal Music Group My Songs Know What You Did In The Dark (Light Em Up) · Fall Out Boy Save Rock And Roll ℗ 2013 The Island Def Jam Music Group Released on: 2013-04-12 Producer, Associated Performer, Guitar, Keyboards, Background Vocalist, Programmer: Butch Walker Studio Personnel, Recording Engineer: Jake Sinclair Studio Personnel, Recording Engineer: Laura Sisk Studio Personnel, Mixer: Mark 'Spike' Stent Studio Personnel, Assistant Mixer: Matty Green Composer Lyricist: Patrick Stump Composer Lyricist: Pete Wentz Composer Lyricist: Joe Trohman Composer Lyricist: Andy Hurley Composer Lyricist: Butch Walker Composer Lyricist: John Hill Auto-generated by YouTube.