"Bittersweet" is a single by the cello rock band Apocalyptica in collaboration with Ville Valo (of HIM) and Lauri Ylönen (of The Rasmus).

Occasional clips of Apocalyptica playing in a misty swamp at what appears to be mid-morning are strewn randomly throughout the video.

As the video progresses, the camera follows a woman dressed in black, occasionally flashing back to Valo and Ylönen still singing.

In the last few seconds of the video, the song ends and the woman is shown laying down to sleep as the moon descends into the horizon.

Suddenly the candles at the table blow out, and the video ends with Ylönen and Valo glaring at the camera with wholly black eyes, presumably having been possessed by demons.