I took the honor of fast forwarding to the uplifting part where this remix track hit me! ;)
Ayu Unite alt+4 remix
Ayumi Hamasaki - Unite! (Airwave Club Mix)
Apparently, she is quite a POP star in Japan! Although, her live performance isn't my taste...not vocal trance :(
Ayumi Hamasaki AT2009 ~ NEXT LEVEL- UNITE!