Halloween is around the corner — do you know what you're dressing up as? If not, we have nine amazing celebrity-inspired outfits for you to try out this year. If you're leaning toward looking like a superstar, check out our Katy Perry, Nicki Minaj, and Lady Gaga outfits. Meanwhile, fashion heads can channel their inner styefile via Karl Lagerfeld, Grace Coddington, and our favorite fashion photographer, Bill Cunningham. Or perhaps you prefer something a bit more regal, a la Prince William and Kate Middleton. Click the slideshow to see and shop Halloween costume ideas inspired by iconic figures in music, fashion, and royalty.

What's not to love about this sweet style snap of Jessica Hart? From the top knot right down to the stack of covetable arm candy on her wrist, she nails a perfect Fall look — but it's only one of many. If you don't know the Australian-born model, famous for her adorable, gap-tooth smile and style-setting ways, you'll want to get familiar. Hart's drawn us in with seasonally on-point style that speaks both to the rocker-cool and the preppier aesthetics. With slim blazers, skinny denim, and then sexier wear, in the form of miniskirts and leather accents, Jessica crafts one of our ultimate favorite Fall wardrobes, and a slew of desirable looks to steal. Just click through to see how she outfits her super-fresh Fall style, then shop the key pieces to channel Miss Hart's signature cool.

Our obsession with neutral tones has gotten a little rosier, thanks to the blush-gold color combinations we're seeing on the runway. For Fall '11, Michael Kors debuted monochromatic looks that layered blush and taupe tones with gold accents for a rich effect; for Spring '12, Just Cavalli showed a deliciously textured outfit that saw rusty metallics paired with blush tones. It's a color combo that manages to feel boldly feminine but still soft, and we're jonesing to try it this season. Click to shop our picks, and get our styling tips.

This week on Twitter, we caught up with some of our favorite fashion peeps in their moments of work and play. Behati Prinsloo and Coco Rocha tweeted while hanging backstage, and Damaris Lewis and Karolina Kurkova shared snaps while attending stylish soirees. Best of all, Victoria Beckham gave us a super-sweet peek at life for baby Harper! Click through to see photos from some of Twitter's most fashionable folk.

If you were to take inventory of our closets, we can bet you'd find a good amount of striped tees and sweaters. And why not? Our soft spot for stripes is well-justified; the classic pattern goes with practically anything, providing cool clean lines, or funkier contrasts to your looks — depending on how it's done. For Fall, we're drawn to the preppier, collegiate feel they lend on cozy sweaters and long sleeves, though we love it when they take on a more unexpected identity on a pair of silky trousers or an elegant clutch. Whether you share our obsession or you're new to the game, we guarantee you'll find something to strike your interest from this batch of covetable striped finds — including a hearty helping of stripey knits just begging to be worn through Autumn and Winter. Click through to shop some of our favorite striped finds, all perfectly priced under $100.