I heard that Ayu has never lip synch, is that true?

[yys113]

All of you who said ayu have lip sync, can you prove it please? Don't tell me every artist has to lip sync at least once, who told you that? Are you the one in charge of playing the lip-sync audio during their performances? If not, sorry you don't know crap about what you're claiming.

I don't really like it when people are trying to sounds like they are pro in this area and say stuff like "yeah, they all do that....", "yeah, ayu did that for a few times", if you don't know for sure, don't sound so sure.