In the menu screen where it says Rockband in big letters , push red, then yellow, then blue. Then push red, red, followed by blue lue, blue and then red, yellow,blue again. Do this quickly and the screen will say that all songs are unlocked. Warning, this fades away when the xbox is turned off and you cannot save the game when it is in use! Have fun

If you take your microphone and hold it up to the speaker on your tv, you won't have to sing and you will hit each note perfectly