Well, several people seem to think so (a little Googling got me far) but I'm one of those obnoxious people who go "if I don't hear it straight from Ayu" because I can't find any proof to these arguments. The only places I can actually see this statement is on some random fanpages but uhm... where's the source..? I find no interviews, pictures, nothing. So sorry, not buying it myself
Here's the same subject, here in AHS, as
truehappiness pointed out:
http://www.ahsforum.com/forum/showthread.php?t=27271