Karaoke is a form of interactive entertainment or video game in which amateur singers sing along with recorded music (and/or a music video) using a microphone and public address system. The music is typically a well-known pop song minus the lead vocal. Lyrics are usually displayed on a video screen, along with a moving symbol or changing color and/or music video images, to guide the singer. In some countries, a karaoke music video with lyrics and the option to disable the original voice track is called a KTV. Due to its English pronunciation, it is sometimes incorrectly spelled "kareoke". It is also a term used by recording engineers translated as "empty track" meaning there is no vocal track.