We chose Angel Standing By, by Jewel as the song we danced to, but the introduction song was probably the most fun. We used Amazing Grace by the Drop Kick Murphys. You can hear a tidbit of it
here if you scroll down, #15. It starts off very slow like the song normally does, with bag pipes and we had our parents and grandparents walk in then. When it starts to actually pick up is when we had the wedding party and ourselves introduced. For us, it was very fitting and started the reception off on the right (think party mode) foot