A music manager (or band manager) may handle career areas for bands, singers, and DJs. A music manager may be hired by a musician or band, or the manager may discover the band, and the relationship is usually contractually bound with mutual assurances, warranties, performances guarantees, and so forth. The manager's main job is to help with determining decisions related to career moves, bookings, promotion, business deals, recording contracts, etc. The role of music managers can be extensive and may include similar duties to that of a press agent, promoter, booking agent, business manager (who are usually certified public accountants), tour managers, and sometimes even a personal assistant.