I walked down the aisle to an acoustic version of Everlong by Foo Fighters played by my brother.... Our bridal waltz was 2 songs... the 1st was Miracle by Foo Fighters which then broke into the original version of Everlong... which was great to watch my grandparents bopping away to!!
We also played Forever by Ben Harper and Gold To Me by Ben Harper, and a few other songs that I will remember when I am less sleepy.
Definitely let us all know which songs you choose.
All the best.