This might sound strange but "The Macarena". When we were in MGM quite a few years ago, we were sitting eating at the place(I think it's called Rosie's) where they have footlong hot dogs and hambergers and turkey legs and all that good stuff. As we were finishing up there was a DJ that began playing dance music and throwing confetti and everyone was having a great time including my two small (at the time) children. All of a sudden this cool song was being played over and over and the DJ was teaching everyone how to do it. Little did we know a short time later this song would be a huge dance hit and whenever we would hear it all we could think of was watching our kids having a blast at our favorite vacation place WDW!