You should start first by getting a agent, they are the people who has all the contacts, can get you into interviews with people or get you to a expo where all the top dogs are at and you would be seen by all kinds of important people. also your agent helps you with a portfolio which is a very big demand most producers, musicians etc.. won't see you until they see your portfolio first.My uncle is a agent if you need more info just ask.
Some good ideas would be to get some famous agents who can introduce you to great musicians. The agents can also connect you to perform on major concerts, which could get you famous. You can also make some albums or sign up with the media to promote your music.