This Cute $18 Skirt Is Officially Red Carpet–Approved

It's not every day that a mega model wears something under $20—and on the red carpet, no less. But it just happens to be our lucky day. Joan Smalls donned H&M's A-Line Denim Skirt ($18) to an event in Puerto Rico, and it immediately shot to the top of our must-have list. From the cool '70s patchwork detail to the amazing price tag, this buy is simply a no-brainer for summer. 

Scroll down to see Joan Smalls's full look and shop her skirt!

How would you style this skirt? Tell us in the comments below, and shop other affordable skirts from H&M!