What is a good song to have sung during our wedding processional?

A friend is going to sing something at our wedding ceremony. What is a good song for her to sing during the processional or during the signing?

What is a good song to have sung during our wedding processional?
i have a friend who is in a band and is gonna sing at our wedding he is gonna sing Truly Madly Deepl by Savage Garden for my entrance and the I knew I love you b4 I met you by Savage Garden for my exit. I also wanna incorprate Somewhere over the Rainbow (Isreal Kamakawiwo'ole version) because my friend knows how to play all string instruments and the Ukelaili is used in this version.
Reply:I don't know who gave Lei a thumbs down, but The Prayer is a wedding song and is absolutely beautiful! The only version I know is by Josh Groban and I believe the Charlotte Church Choir. It's absolutely beautiful, I've been thinking about using it for the recessional.
Reply:http://www.weddingwire.com/shared/Weddin...
Reply:This is the biggest and best list of wedding songs I've seen:





Wedding Songs:


http://www.hearts-and-kisses.com/wedding...
Reply:The prayer