They will most likely do a live from the registry office in a wedding dress and aShe's still insisting that they won't be telling anyone when they do get married. But there's no way that one of them won't leak the date. Either on purpose or because they're such idiots and will do or say something that gives it away.
My bet is on Joel leaking the date on SM and to the pressShe's being weirdly secretive about their wedding plans. Fair enough keep them to yourself but what's the point of having a joint Instagram??
You're right though, one of them will definitely leak the date