I'm Chinese and I always listen to Chinese music. However, a lot of Chinese songs are actually Japanese covers. Of course, most Chinese people don't know this. So imagine my surprise when I hear that some of my favorite Chinese songs aren't Chinese at all....they're actually Japanese songs.
That was what got me interested in Japanese in general really.
You can find a lot of these songs on youtube, it's fun to listen to both versions.
YouTube - 真夏の果実 / SOUTHERN ALL STARS
YouTube - 張學友 - 每天愛你多一些
YouTube - 真情流露/张学友
YouTube - 旅姿六人衆/サザンオールスターズ
YouTube - 王菲 - [容易受伤的女人]
YouTube - 中島みゆき ルージュ