If you're playing for a lame, drunk crowd, play anything they want. That stupid, drunk bastard will have the biggest smile on his face when you do and you'll be treated like a god when you do. Otherwise, for a more musically, knowledgeable crowd, put yourself into it and what you like. Educate them by playing from your heart and don't be afraid to whip out the funk whether back from the 70's or funky house music of today. I remember I once played James Brown's, "The Big Payback" and I never saw white people get down so good.