In your country does Ayu appear on TV, magazines, newspapers etc? Do usually people know who Ayu is when they see her?
...or you're like one of the very few who at least heard of Ayu?
Here in Romania, Ayu is, like the rest of J-Music, veeerryyyyy underrated
There are some anime fans that heard of Ayu because of Inuyasha and liked Dearest, and others who listens to Asian Music (like me) and listens to Ayu at least once in a while, but there are really few. ._.