It's Fashion Week and amazingly, we're talking about the other Delevingne. Poppy, older sister to "It" model Cara, sat front row at the famously flamboyant and vibrant brand Desigual, and it was a match made in heaven. While her front row cohorts Rosario Dawson and Olivia Palermo stuck with chic, monochromatic outfits, Delevingne made a statement in a mini LBD covered in luscious lips. She topped off the look with a playful mini purse covered in stars, suede ankle boots and a bright red statement lip of her own that clashed with the pink lip prints in the best way possible. We're often reminded that fashion should be fun, and Delevingne is arguably having the most fun at Fashion Week so far.

Here's proof that you don't need pants to suit up. Actress Shay Mitchell kicked off Fashion Week with a fresh, feminine take on the traditional tux: a crisp white shirt-dress layered under a tuxedo vest, paired with matching two-toned sling back heels. An effortless top knot showcased her fresh-faced glow -- a natural lip and loads of lashes for a simple yet stunning beauty look. We'd expect nothing less from a Pretty Little Liar.