TheMusicLicence
PPL PRS provides TheMusicLicence for businesses and organisations that use music in circumstances where public-performance rights need to be covered. PPL PRS also states that a temporary permit can be arranged for an event that includes playing or performing music in public where the customer does not already have suitable cover.
This side of licensing is normally connected to the premises, business, organisation or event music use rather than being a generic badge that follows every DJ to every booking.
That is why your first practical question should usually be directed to the venue: “Are DJ events of this type covered by your current music licensing arrangements?”