Who knew full coverage could be so sexy? While some of last night's Met Gala attendees opted for microminis and dangerously low necklines, Jennifer Lopez and model Joan Smalls went a different route, both swapping short and sweet for sheer, long, and seriously rocker chic. Joan arrived on the arm of Tom Ford in a black lace gown from the designer's Fall 2013 collection — an ornate creation that left little to the imagination — which she accessorized with a single gold razor blade earring. Jennifer Lopez brought along not one, but two handsome escorts: her boyfriend, Casper Smart, as well as her designer date, Michael Kors. Jennifer's gown boasted a revealing back cutout and sequined giraffe print, and perfectly complemented her famous curves. It's clear that both Jennifer and Joan got the long-sleeved, sheer-gown memo — but which of them got it right?

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