This catchy tune is Bad Moon Rising from Creedence Clearwater Revival and the video uses werewolf clips from the Harry Potter movies. The song was also featured in the movie American Werewolf in London.
Bad Moon Rising Lyrics
I see the bad moon a-rising.
I see trouble on the way.
I see earthquakes and lightning.
I see bad times today.
Don’t go around tonight,
Well, it’s bound to take your life,
There’s a bad moon on the rise.
I hear hurricanes a-blowing.
I know the end is coming soon.
I fear rivers over flowing.
I hear the voice of rage and ruin.
Hope you got your things together.
Hope you are quite prepared to die.
Looks like we’re in for nasty weather.
One eye is taken for an eye.