Lip synching

Lip synching is when a person moves his or her lips at the same time as a recorded sound or with another person. Some artists lip sync a live performance because they are not as confident and want to avoid hitting possible bad notes.

Lip syncing by singers can be controversial to fans attending concert performances who expect to view a live performance.

The word synch is short for synchronize, meaning to do something at the same time.

Lip Synching Media

An audio engineer (foreground) recording a voice actor (at microphone) for an animated video production. Lip synchronization of this recording with animation will give the impression that an animated character is speaking.
Pop singer Ashlee Simpson (pictured in 2009) lip synced a song on the variety TV show Saturday Night Live in 2004.
Fab Morvan (left) and Rob Pilatus (right) pose with National Academy of Recording Arts and Sciences (Grammy) president Mike Greene at the 1990 Grammy Awards - rehearsal - February, 1990 - Permission granted to copy, publish or post as long as you credit "photo by Alan Light" if you can
Spears performing in 2009's world tour The Circus Starring Britney Spears

This short article about music can be made longer. You can help Wikipedia by adding to it.