Listen to My Songs Know What You Did in the Dark (Light 'Em Up) online. My Songs Know What You Did in the Dark (Light 'Em Up) is an English language song and is sung by DJ Kee. My Songs Know What You Did in the Dark (Light 'Em Up), from the album 40 Mega Dance Workout BPM 140 - 160, was released in the year 2015. The duration of the song is 4:21. Download English songs online from JioSaavn.