While that case takes serious dedication from the celebrity (and a restraint in quaffing free-flowing champagne), other seemingly risqué situations don’t actually take that much commitment. Namely, wearing the sheer illusion dress, or, as we like to call it, the Naked Dress . Spoiler: Celebrities aren’t really that naked underneath — Rihanna at the CFDA Awards notwithstanding — because most likely, the stylist has stealthily augmented the dress with some sort of flesh-toned lining.“For instance, J.Lo’s not naked underneath, I guarantee you,” says Len. “They’re great on choosing the exact fabric color that goes underneath.” Then she pauses. “Maybe she is, who knows. She’s amazing.” But for Len’s less adventurous clients, the secret to trick-of-the-eye nudity is matching the underwear or sewn-in lining to the wearer’s exact skin tone. “[The lining] can cover your nipples and certain areas, but since it’s the color of your skin, it’s the illusion of you wearing nothing underneath,” she explains. Evans also looks to high-tech, ultra-thin, raw-edge slips and bodysuits “that are like a second skin.”The same strategy works for adding coverage to a skin-baring and wardrobe-malfunction-risking cutout dress. “If the cutout is in a specific place where you can wear an undergarment and it just looks like your skin, you can get away with it,” Swennen says. “But otherwise, to be honest, it’s really a free-for-all in there. You gotta just go as is.”But, of course, #notallcelebrities. “Amy [Schumer] would prefer at all times to go without shapewear because she’s very much a person who likes comfort, but she also will agree that sometimes shapewear just does exactly what I said,” Evans says. “It gives you great posture and it makes you feel good, and anything that does that — how can that be wrong?”Although, there’s only so much one can suffer for their craft. “I’ve had women do a ditch [midway into the] night,” laughs Swennen. “All of a sudden, ‘Where’s my Spanx?’ ‘Oh, it’s in the bin. I’m sorry, I threw it out at the Academy Awards. I couldn’t deal with it.’”