Find a Venue. The most important part of any rock concert, besides the band itself, is the venue. How many people do you expect to come? How much money do you expect to make? What venue will attract the most people? These are all questions you need to ask yourself, and then apply the answers to choosing the venue with the right size and price to host your rock event.
Find a band. If you pay them, they will come. Keep in mind that the more popular the band, the harder and more expensive it will be to book them. Once you have decided on a band, contact their booking manager. If they are already going to be near your area on another date you will have a better chance of booking them. If not, you may have to pay extra costs such as extra travel expenses. If the band is local you should have no problem booking them as long as their schedule is open and the price is right.
Check your city offices for permits. If you are planning on doing an outdoor show you will need a permit. If your show is in an indoor venue you most likely you will have no need for a permit. Remember that if you plan on doing an outdoor show you will also have to address such issues as sanitation, noise ordinances (basically the latest time that you can play music without getting shut down by law enforcement) drinking/food permits, and much more depending on the city or county where you plan on hosting the event.
Line up your equipment. You will need lighting, sound and stage equipment. This also means that you will need technicians to run your sound and lighting, as well as stage hands to help with the staging.
Send out your promotion. A rock concert is not a rock concert without tons of screaming fans. Be sure to not only send out fliers but contact radio stations, TV stations and local newspapers to run ads for your show. Be creative in your advertising so that it sticks out and people remember your show. Be sure to also include clips of the music from the bands. Some people will recognize a song but may not know exactly who sings it.
Follow every detail of your rider. A rider is a handbook of instructions that will be given to you by the band's management. This is basically a list of guidelines and requirements for the show. This incorporates everything from technical requirements to what food you need to provide for the band's dressing rooms. Neglecting to provide something in the rider could cause you to lose your band, even on the night of the show.