Activity for Elicea

Our song is Chasing cars from Snow Patrol, and I know most couples dance to their song but I am not sure ours fits with any dance... i toyed with the idea of walking down the aisle to it. But I just have no idea. Any suggestions?

We have asked the wedding party to be prepared to cover the cost of their attire, so in return, we are buying gifts for them. What we need to know, is am I supposed to keep it a secret until the wedding? I am asking because I wanted to get their...