Elle Macpherson's Dress Looks Basic — Until You See the Bottom

It's almost impossible to tell if this is actually a snap of Elle Macpherson on Tuesday night in London or a glamorous throwback from her supermodel heyday. As far as we're concerned, the 51-year-old beauty never ages — and this is quite clearly more proof of that. While attending the British Fashion Council/Vogue Designer Fashion Fund dinner at the Bulgari hotel, Elle had us mesmerized in a one-shouldered black dress that came with one surprisingly sexy detail. Where the look was slit up the thigh, there was a piece of lace inset, adding a sultry finish to the otherwise minimalist outfit. In our estimation, it struck just the right note, adding allure without trying too hard. Read on to catch a glimpse of the jaw-dropping look from all angles.