Bride Singing At The Reception

Hi. I am getting married this summer. I would like to pay tribute to my parents by singing "Wind Beneath My Wings" to them at my reception, as that song has special meaning between us. I would like to do this as a surprise, and not even let my fiance know about it.
I do have a pretty good voice and have performed solo in front of large crowds before, but it has been a while. If I go ahead with this, I will probably meet with a voice coach a few times before my wedding.
What do you all think of this idea? Is it corny? Would people laugh or feel uncomfortable? Please help!