Thanks to all of you!

The party was a great success, he prepared his house for 2 days with all kind of stuff from the 80's, especially ski things and everyone was dressed alike this:
I was running a playlist of your 80's I prepared with the host one hour before, and the atmosphere was awesome, I thought I could mix a bit later to make the people dance. But at 10pm or so the host said, "lets go make them dance and play elektro" so I threw in daft punks da funk and the part with 80's music was quite over, later I also played stuff like "a walk in the park" at 130bpm or so, all in all it was just awesome (people said it was the best party of the year ).

Thanks again, and I agree with you olafmol and steveboyett, that you need to know the style and music to understand whats special about it and to know what matters in a mix.