In this instance musicians, entertainers, DJ, KJ, VJ would all be the same

Bakersfield Municipal Code on Cabarets Licenses and Regulations	Bakersfield Municipal Code on Amplified Sound Permits

BMI Licensing

If the musical performance is taking place on the premises, the establishment is responsible for obtaining public performance rights. This responsibility cannot be passed on to anyone else even if musicians hired by management are independent contractors and exceed or ignore specific instructions on what music can or cannot be played. Since it’s the establishment that’s being enhanced by music, the establishment is responsible for ensuring it is properly licensed, similar to other legal responsibilities a business must handle.

Copy of an Email I got from BMI on 4/3/08 11:35am
Kyle:

Unfortunately, BMI does not presently have a license for Mobile DJ’s, DJ Services or Karaoke Hosts. Under our current structure, the establishment or venue that contracts for your services is responsible for obtaining the proper license.

BMI licenses the "public performance" of music. Generally speaking, public performances are defined as performances "at a place open to the public or at any place where a substantial number of persons outside of a normal circle of a family and its social acquaintances is gathered." Therefore, events such as private parties and weddings are not required to have a license.

I trust the above is helpful. Thank you for your interest in BMI.