by the honeybear December 1, 2013
When a musical act is caught lip syncing in concert. (From the July 21, 1989 Milli Vanilli concert in Bristol, CT where the vocal track to "Girl You Know It Is True" skipped)
Ashlee Simpson had a Milli Vanilli moment when a song tracked played before she started singing on Saturday Night Live.
by tlcoopi7 December 20, 2008