Some people mistakenly assume that musicians and entertainers, including DJs and karaoke jockeys (KJs), must obtain licenses to perform copyrighted music, or that businesses where music is performed can shift their responsibility to musicians or entertainers. For many decades, it has been the law that all who participate in, or are responsible for performances of copyrighted music are legally responsible for infringing performances of that music. Since it is the business owner who obtains the ultimate benefit from the performance, it is the business owner who obtains the license, whether the performance is by a live band, DJ, karaoke (with or without a KJ), or otherwise. Music license fees are one of the many costs of doing business.