Side boob baring, navel-deep necklines — the kind that necessitate double-stick tape to stay safely in place — used to be territory where only the likes of Jennifer Lopez dared to tread. But lately it seems like celebs are playing a game of “How low can you go?” with their plunging necklines. The usual celebrity exhibitionists are all over this trend, but you may be surprised by some of the stars who are baring it all. Julianne Moore, Miranda Kerr and Cara Delevingne are just a few of the style-setters who are taking the plunge in seriously low-cut necklines that leave little to the imagination. We’ve rounded up the best and worst of this revealing trend that’s not for the faint of heart.