nami tamaki "rip off " ayu for a song ?

[gothicayu]

i dont know guys if you ever notice but some part of nami tamaki result sounds strangely like the way ayumi hamasaki was singing in unite , even the background music sounds kinda similar http://www.youtube.com/watch?v=JkGDrkLFMrM

there is a huge difference in the chorus part but the rest sounds similar

what do you guys think ? complete rip off ? partial rip off ? or can't hear it at all ?

i like both of those artists i was just wondering if anyone else hear it .
to me it seems she got inspired by it . not a full rip off .