Yeah man no liquor license is needed, cause the bar/club will have that taken care of, back when I 1st started DJ'n I was in my last yr of tafe, and we needed to hold fundraisers to help pay for our exhibitions, and for 1 of them I organized an event at a club, me n some frieds just spun all night, all I did was email the manager of the club and met with him to discuss the event, we charged $10 per person and the club made money back on drinks so it was a win win situation