I'm going to be "DJ" for my own wedding (putting a playlist on an iPod and having father in law play music at certain times). My fiancé and I pretty much listen to exclusively metal and hard rock, and we hate cheesy romantic songs. (We love Led Zeppelin, STP, NIN, Tool, Metallica, etc.). I've even joked about having "We're In This Together Now" by NIN as our first dance. Any tips for songs that won't scare the pants off our older or more conservative guests? We are having a non traditional wedding.