If they are going to have a band pack, there should be some sort of Fame System, without or compatible with the Getting Famous EP. I suggest a Fan Base system, where individuals or groups can acquire a growing fan base represented by a fan club president and fanboys/fangirls/fanpersons. Fans would generally have a like for what the rockstar model or group is famous for, ie type of music, style of clothing, type of instrument, or any other Like. It's a little late in the game for my suggestion though. They probably have something like it figured out... I hope. I don't want to see them drop the ball and not give it its own system for famous Sims.