Iwao-san played the main character in Perfect Blue, a pop star named Mima, and she sang the songs in that movie, but be warned that Perfect Blue is much more violent and sexual than CCS. And yes, I love Tomoyo's singing voice, too. My favorite Tomoyo song will always be Koko no Kite but my favorite Iwao Junko song of all time is Ai no Tenshi from Perfect Blue.