Now this is a look we could totally get on board with!
The Twilight actress looked comfortably laid back at the star studded event which brought the likes of John Krasinsky, Justin Long and model Chloe Sevigny under one roof.
Kristen - who has been sporting a number of spangly red carpet dresses of late - decided to pare it right back and channelled her inner tomboy in an oversized button up shirt which she wore over a faded navy blue T-shirt.
Even though she has a pair of fabulous pins, the starlet decided to cover them up in baggy cigarette trousers which enveloped her teeny-tiny frame.
Taking loungewear to the next level (a girl after our own heart) Kristen ditched the Louboutin heels - which she often kicks of at awards ceremonies anyway - for a simple pair of black and white trainers, but she still managed to cause a pap frenzy!
One thing Kristen did pay a lot of attention to, however, to was her make-up. Gorgeous Ms. Stewart flaunted a contour to rival Kim Kardashian (yeah, we went there!) and opted for lashings of jet black kohl eyeliner - which she winged out at the corners - to punk the look up a tad.
Staying true to her signature IDGAF style, the edgy beauty wore her choppy locks in shaggy waves and swept them to the side for a completely chilled, fuss-free look.
And she nailed it.
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