Guitar hero 3 1,000,000

Ok, go to training and click on practice. notice that all of the songs don't have a high score. Now exit out and click on tutorials. Go on the advance techniques tutorial. as soon as the tutorial starts (when the screen changes) click start. Now exit out of it and go back to the practice menu. All of your songs should now have a high score of 1,000,000 and have a 5 star rating.(not work on PAL version)