Fran, here's what usually works for me when it comes to theme parties like St Patty's and Mardi Gra, or Hawaiian or whatever. I make sure I have at least 6 or 7 good solid tunes in the genre. Then I find all the styles that fit and use as many as I can. Do a lot of the theme songs early. Once you have the crowd, then you can pretty much do what you want. Good luck!

Joe party
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PSR S950, PSR S900, Roland RD 700, Yamaha C3 6'Grand, Sennheiser E 935 mic, several recording mics including a Neuman U 87, Bose L1 Compact, Roland VS 2480 24 Track Recorder
Joe Ayala