Back in October, news broke that Avril Lavigne had covered "How You Remind Me" -- the biggest hit by her fiance Chad Kroeger's band, Nickelback -- for the soundtrack of a Japanese anime film titled One Piece Film: Z .  Now, the full version of Avril's version of the song cover has popped up online . 

Avril's version is softer and more ethereal than Nickelback's -- it's essentially a piano ballad. On the other hand, she's also covered the Joan Jett classic "Bad Reputation" for the film, which is coming out this week in Japan.

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