I watched a English song video once but I don't remember the song title or the artist, I just have a vague description of the video. I hope somebody can help me, It goes like this. The singer of the song plays a small instrument resembling a guitar, I guess it's a mandolin, and as he sings the spirits in the room come out of their hiding places and start dancing. But in the end just be fore the song ends the music suddenly changes to rock.it had a really good music.