This article by Megan Garber from TheAtlantic.com is a very good read as to why the songs we love to hate, we also love to love. It explains a lot, in a lot of detail. A lot of good, professional DJs know exactly how to read a crowd and react based on the theories in this piece.
TheAtlantic.com: The Psychological Reason ‘Billie Jean’ Kills at Weddings