Song for Walking Down the Aisle

I am trying to decide whether or not to play classical music as I walk down the aisle, or have a R&B type song play. Also, if I have an R&B song playing - do I play the recorded verison or have someone sing it live? I don't want to do "Here Comes the Bride" ... but my friends are worried that if I have someone sing that the focus may be removed from me and on the singer. What are your thoughts, and if I should have a song - what R&B songs are good?