Thanks for the response, Henry! With this now in mind I will probably end up buying the pack in the future. Bark at the Moon was one of my most requested songs. I'll definitely consider buying it now. At initial launch the whole pack did look quite fun, I just haven't really had the money for experiment buying since then. I will soon, though!
It's a good pack. I reccomend that you buy it. It has some nice parts for all the instruments at one point or another.
Who do I have to get drunk in order to get "Red Solo Cup" in Rock Band?