I don't think she lip synchs. I highly doubt she does. If she ever did (or does), I wouldn't have guessed. She's a good singer, and any artist that lip-synchs is probably too lazy or afraid they will screw up, so they play the original track and mouth the words. I remember something about a singer in America singing, and she was caught on TV lip singing (Ashlee Simpson?). So, say Ayu was in a concert singing A Song For XX and then the next song she knew to sing was, I don't know, Greatful days. Say she sang A Song For XX, and the baned accidently played Dearest and there she goes singing Greatful days. She obviously doesn't lip synch because she knows what she's doing. Just look at the clip of her forgetting the words to Voyage. At least she's honest about it unlike some singers I could think of.
