On this page you will find the My Songs Know What You Did In The Dark (Light Em Up) ringtone in several versions, all free to download. Original song by Fall Out Boy. There are 7 versions, from 19 to 32 seconds long. If you like fast, pop and angry ringtones, see the tags below. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. All ringtones by Fall Out Boy are collected on the artist page.