I've played guitar hero on tour a lot and I've managed to get 5 starts on every song on every difficulity. I've also won all the guitar duels on every difficulity. For some reason though, I have only unlocked 1 bonus song. ("I am not your gameboy" by Freezepop). I'v always been told that there is 5 bonus songs to unlock, and when I look it up at the internet I read the same. Why have I only unlocked 1 of the 5 songs when I've completed the game in all possible ways??