Event Organisation plane
First you have to an estimate of expediture. Next invite star, set condition- rate, concert date, average concert, accomodation in hotel. Find good place for this event to create stuff and assign them a task. Schoul make good advertising and promotion in Internet, TV, radio, order Posters, tickets. Send inivitation per Fb for friends. Sell tickets for event a lot place: Empik, Internet
Now remains only waiting for guests
good luck !