which cheap interface do i need here?

i have a mac and am using DJAY to play for my friends wedding tomorrow. all i have so far are large speakers from the space and my computer. i need a USB interface and i need it REALLY CHEAP. any suggestions? also, do i need anything else here??? i am not trying to be the most amazing mixer, i am just trying to make my friends dance and have fun. i am used to vinyl.
i have to DJ tomorrow so any help ASAP would be amazing.

Hi Deanna,

Generally speaking, you can use any USB audio interface with djay. As long as it’s supported on the Mac, then you should be able to use it with djay.