Karaoke is an entertainment in which amateur performers sing popular songs to a pre-recorded accompaniment. This is typically, though not necessarily, done in a public place such as a night club.
Karaoke recordings are specially produced to include a variety of popular songs from which the lead vocals have been omitted. They come in a variety of formats including tape, CD, CD+G, and VCD.
Karaoke equipment is designed for the playback of karaoke recordings. It comes in a variety of formats and styles. There are professional and amateur grades of equipment; some are intended for use by professional KJs (karaoke jocks) in clubs while some are intended for personal practicing or in-home entertainment.