sorry, I was being sarcastic, I'm not usually a douche. 
basspuddle's comment isn't entirely accurate. Playing live you're going to generally encounter one of three situations:
1. There is one mixer on the stage table that everyone is using to play their sets. Often this mixer will be a DJ mixer with RCA inputs primarily or only. This often happens at "chip shows".
2. A professional or semi-professional soundsystem is set up but they have no DI boxes, or only one DI box.
3. A professional soundsystem is set up and they have two DI boxes or a stereo DI box.
DI boxes almost universally take a 1/4" unbalanced input and output a balanced signal via XLR.
So the minimum to be prepared is to adapt whatever the output of your mixer is to stereo RCA, and then carry RCA->1/4" adapters for that (minimum cables, maximum flexibility). The next step would be to carry a stereo DI of your own, as well - that way you're ready to plug directly in via RCA, 1/4" or XLR.
So the extended version of my sarcastic answer is "Of course, you just need the right cables and maybe a DI box."
