Avril Lavigne is putting aside her punk rock image ... at least for this sexy video for "Goodbye."

The 27-year-old singer says she filmed this special video, shot by Mark Riddell, to mark the end of her year-long Little Black Stars Tour. Avril Tweeted:

    "Here it is #LittleBlackStars! My special video to thank you for an amazing Goodbye Lullaby year! Love you! xo'."

Lavigne shot the sultry scenes at the Chateau Marmont in West Hollywood. Gorgeous!