Something tells me this would be a serious faux pas, but at the same time people do some crazy things nowadays, so.
Basically, I'm a singer/guitar player. My fiance loves this about me. He mentioned wanting music (i.e. a solo) at the wedding but as we are outdoor it would really kind of have to be acoustic...and none of our friends can both sing AND play guitar (or any other instrument, for that matter). Problem is...I'm self-taught and can really only play when I'm singing along.
So would it be totally against etiquette or whatever if I surprised him and sang a song for him at our ceremony?