If they don't have it copyrighted to only be used in halls and assembly/conventions and your church doesn't have an issue, do it, if you really want to. Just the music, maybe? Maybe part of prelude or interim music? Singing it may be a bit much for the guests, unless you have a soloist doing it.
There were very few 'kingdom' songs that I thought sounded very nice, but even a monkey gets a full house randomly sometimes:) Congratulations again!