Haute couture is a celebration of artisanship — and one-upmanship — as the world’s top fashion houses gather in Paris to compete with one another and show off new designs.

So, too, with the celebrities and socialites on the front row, who also have something to sell — movies, music, reality television, cosmetics. The season this week has been no exception, as a constellation of stars in some seriously flashy wares descended on the runway shows. Here is what — and who — was there.

Jennifer Lopez was everywhere.

Be it at Schiaparelli in a coat made from 7,000 real rose petals and hammered gold sunglasses with sculpted eyebrows and precious stones for lenses, at Valentino in head-to-toe black and diamonds or at Elie Saab in a plunging olive green gown with a cape of purple and green feathers, J-Lo basked in the spotlight ahead of the release of her new album and accompanying movie next month. (If you haven’t yet watched the trailer, prepare to be baffled.)