Interestin effect without photoshop

Yesterday I was at a local underground pub, because i was invited to shoot on the concert of the Super Bad Heroes. (Not to mention that one of my pictures selected by the band to print on the flyer)
There was a small stage, and not really interesting lights. I was a little but confused because i wanted to shoot some unusual pictures but because the environment i could not find the way to the perfect picture.
Than i remembered a suggestion from Scott Kelby's book.
So I've tried it. Like playing. It became interesting. (I know that is not the best result, but i'll work on that).
The effect is simple: All you need is a Zoom lens (mine was the 18-105 Nikor VR), and a Flash.
First, do the usual things. Select the theme, focus, and...
And select a long exposure than rotate the zoom ring on the lens while shoot.
Have you seen the StarWars light speed effect (the stars became lines of light)
It's something similar:

I've made 2 mistakes during these pictures.
On the first image, I've misplaced the focus, and I've selected too long expo time. (that's why the drummer's face became blurry).
The Second image it's much better, but next time, i'll try to find how the slow flash sync works (sync only to rear curtain) and zoom in. Maybe that will be able to get rid of that ghostly look blur from the face.
:)