It is so hard to try and pick something...

I walked down the aisle to the instrumental version of The Verve's Bittersweet Symphony...it was so dramatic (a bit like me sometimes and sounded so "momentous" too. Absolutely perfect and a lot of people commented afterwards about how different it was.

We walked out of the church to a funky version of "Going to The Chapel" performed by The Dixie Chicks. Our first song was a bit more "soppier", Amazed by...oh my goodness I cannot remember the bands name now.

DH wanted "Highway to Hell" as our entrance into the reception but I put my foot down to that instead we walked into "Another One Bites The Dust".

Have been to a wedding where the bride walked into the Split Enz song "Message to My girl" and that was really really effective too.

HTH.