Listen to My Songs Know What You Did in the Dark (Light Em Up) (Karaoke Version) online. My Songs Know What You Did in the Dark (Light Em Up) (Karaoke Version) is an English language song and is sung by Vee Sing Zone. My Songs Know What You Did in the Dark (Light Em Up) (Karaoke Version), from the album Rock Frequency Sing - Along, was released in the year 2017. The duration of the song is 3:26. Download English songs online from JioSaavn.