From the short clip about this that CNN showed last night, she came back into the monologue portion of the show later on and apologized for the lip synching as her voice was raw from previous use (perhaps a concert prior to SNL??) and she was trying to preserve it not rip off the audience. Her 'dance' was, it appears, to be frustration being vented and embarrassment over being 'caught'.
I'm sure many of you have already seen this, but it raises an interesting question.
"Singer Ashlee Simpson's "extra help" may have been exposed when a "Saturday Night Live" audience heard her voice ? singing the wrong song ? while she held a microphone at her waist.
Her record company blamed a computer glitch and she blamed her band for Sunday morning's incident, which cut off her planned performance of the song "Autobiography" on the network comedy show.
Simpson had performed her hit single "Pieces of Me" without incident earlier in the show. When she came back a second time, her band started playing and the first lines of her singing "Pieces of Me" could be heard again.
She looked momentarily confused as the band plowed ahead with the song and the vocal was quickly silenced.
Simpson made some exaggerated hopping dance moves, then walked off the stage 35 seconds into the performance. NBC quickly cut to a commercial."
I wish I had seen the exaggerated hopping dance moves. That must have been hilarious. I did notice that, after the fake vocals stopped, she made no attempt to provide real vocals. You would think that would be the natural response unless... I've often wondered who the real voice of Britney Spears is.