I am trying to come up with the best way to suggest to my guest to dress up for our wedding without cornering them into a "formal attire" or "black or white tie" label. I was even informed that "dress to impress" can be considered offensive to some guests suggesting they would not do so otherwise. My thought is that indicating "Red Carpet" attire would make the guests aware that the event will be elegant yet at the same time it is not directly instructing them to wear a coat and tie or evening/cocktail dress. Your thoughts?