Gwen Stefani can make any trend look cool, pairing an oversized sweatshirt with floral embroidery and Gucci sneakers for a colorful airport outfit. She finished the look with her signature red lips, an easy updo and notice-me pink cateye sunglasses.

Never before has a "fanny pack" looked so chic...or carried so high a price tag. The Gucci 'Marmont' leather belt bag manages to do both. It's one of the cutest streetstyle bags I've seen lately, but will cost you $1,100. For an inspired-by design that I'm guessing will do just as good a job at toting your essentials, click HERE.

THE LOOK: Gucci 'Marmont' belt bag, $1,100 at gucci.com.

FOR LESS: Faux Leather Fanny Pack, $15.90 at forever21.com

Jessica Biel makes errands look classy in a neutral blazer, plaid cropped trousers, and loafers. She spices up this neutral ensemble with a bright satchel and spunky round sunnies.