The only song I've ever liked less because of the PV was Ayu's Born to be and Mirrorcle World. :/ Also, many of Hikki's PVs, because they're so boring. XD
But on a different note, I have a question to ask you long-time Ai fans: I became a fan of Ai right after she released CHU-LIP (Feb 2007, I believe), so the first time I ever saw her she had blonde hair. I thought that's what she looked like.
When I saw her with brown hair I was really weirded out. I just assumed she always had blonde hair. >_< But for you people who had never seen her with blonde hair, what did you guys think?