From New York to Milan, the one-earring trend is all over the runways for Spring '17 [1]. While designers always add costume-like effects to their collections, this little move is no joke. We're positive, you see, because women are already pulling off the look IRL. It seems like this particular street style [2] trend launched in tandem with the shows.

Now, there's only one way to show you're on board. You've got to choose an earring with a geometric shape — one that's chunky or spindly, colorful or tasseled, and definitely unmissable. Read on for plenty of inspiration from the catwalk and some of the best #OOTDs [3] we've spotted so far, then shop our pick of jewels to get started.

On the Runway . . .

At Michael Kors Collection.

At Jeremy Scott.

At Tibi.

At J.W. Anderson.

At Mary Katrantzou.

At Roksanda.

At Versus Versace.

At No. 21.

At Ermanno Scervino.

At Stella Jean.

On the Street . . .

In a silver drop-chain style.

To play up the print on a blouse.

To complement a grommet belt.

To provide an artsy touch.

To achieve retro vibes and play up a round zipper.

As a knotted double rope.