For most celebrities, being caught wearing sweats would get you to the top of the "worst dressed" list faster than many other sartorial crimes, but in this instance, sweats are being touted as the new "go-to" items in your closet. But like any trend, there are good examples...and flat out bad ones. Lets look at how the celebrities featured below shape-up in their athletic wear.
The right way
Rihanna was spotted arriving at LAX ready to take flight in a coordinated casual look, topping it off with a covetable Prada denim bag.
Paris Hilton was one of the pioneers of the "juicy couture velour suit" trend and now the heiress mixes and matches a casual t-shirt and pant that just happen to match her convertible Bentley. Coincidence? Think not.
Lupe Fiasco wore this Comme des Garcons t-shirt from the Spring/Summer '11 line with ankle skimming pants and slip on shoes. He further accessorized the look with designer shades, necklace and a Gucci signature-banded watch for a casual-meets-costly laid back look.
Giselle Bunchen looks model-esque even coming from the gym!
Nicole Kidman was caught wearing this casual ensemble that she pulled together with layered tee's and stylish sunglasses that coordinate with her bag.
Looks like Lauren Conrad's got her hands full, but it doesn't seem to be slowing her down as she powers through her morning in an outfit that says, "I just finished working out but I can still run a few errands wearing this before heading home to, where else? 'The Hills'".
Days before her wedding, Kim Kardashian stepped up her workout game but she didn't let the paparazzi see her sweat - or drop her sense of style. Hermes Birkin as a gym bag? That's haute.
Katy Perry recently flew to Sydney, Australia in this beige Chanel track suit that she paired with Marc Jacobs flats and a classic Chanel 2.55 bag. Who knew Chanel made lounge wear?
The wrong way
Sienna Miller is an A-List beauty, but this disheveled look gets a "T" for "Terrible".
There's no excuse for Katie Holmes to step out dressed like this. Even if her house was on fire.
Ashley Tisdale's laid-back look isn't so bad, but the oversized shorts and baggy tank top do little for her toned frame. Love the Alexander Wang 'Coco' Duffel bag though.
Jennifer Love Hewitt is no stranger to bad candid photos and this beyond casual pairing of Wildfox's wildly popular t-shirt and Free City baggy sweats doesn't help her case. You need more than just coffee Love. Lots more.
Renee Zellweger seems to have no casual clothing. She's either supper glam for the red carpet or extremely dressed-down when running errands. Find that middle road Renee and run with it!
Miley Cyrus's laid-back look isn't as bad as some of the outfits she's worn, but it screams, "I just woke up and I'm meeting Jennifer Love Hewitt for coffee."
Mischa Barton chose to wear these unflattering cut-off sweats (that at first glance appear to have stains on them, but under further inspection are they discovered to be rabbit silhouettes) while out picking up what can only be another calorie-laden lunch. At least her hair looks good!
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