Is it a requirement to add "and Guest" to invitations to single guests even if you're trying to keep the guest list small (under 50)? I've heard either way. My mom tells me you have to put it on your single guests invitations but the single guests that will be coming to the wedding are not currently in a relationship and have not been. The wedding isn't until September of 2012 and I know a lot can happen before then but we really don't want peole we don't know at the wedding because we're trying to keep it a small, intimate gathering.