Pamela Anderson
The former Baywatch star has joined designer and good friend Richie Rich to make an eco-friendly collection called Muse. But will the actress who says she's more comfortable not wearing clothes have an eye for fashion?
Cheryl Burke
The Dancing With the Stars pro, who has "always wanted to start [her] own clothing line," got her wish. She designed workout wear with clothing company Fit Couture. Hey, if donning the hoofer's wares means we'll be able to move like her, we'll take the whole collection.
David Arquette & Ben Harper
These longtime friends and famously wacky fashionistos love clothes so much they've created Propr, a line for men, women and kids! No one saw this coming, but we're really curious how their threads will look—how about you?
Fergie
The Black Eyed Pea has put her stamp on an affordable footwear line named Fergalicious by Fergie. Judging by the pair she's modeling here, we like what we see.
Sienna Miller
The stylish British actress and her big sis Savannah (left) wrap up their first Twenty8Twelve runway show at London Fashion Week. The label's name was inspired by Sienna's DOB, Dec. 28.
Chloë Sevigny
The Big Love star channels her quirky fashion sensibilities into the collaborative line Chloë Sevigny for Opening Ceremony. And quirky it is: The latest look she's created is a unisex collection!
Mandy Moore
Mandy's Mblem line, consisting of cazh contemporary fashion, launched back in 2005. But conflicting quotes from the singer-actress and her manager put the future of the label in question.
Hilary Duff
Following on the heels of Rachel Bilson's supersuccessful collabo with DKNY, Hil also worked with the brand to produce a collection called Femme for DKNY Jeans, aimed at trendy twentysomethings.
50 Cent
The rapper, who grew up in the tough streets of Queens, N.Y., is reportedly launching a men's cosmetics line?! The guy has branched out with a clothing line and created Formula 50, a VitaminWater bevvie, so maybe the makeup thing isn't so farfetched.
Taylor Swift
The country cutie's l.e.i. Sundresses by Taylor Swift sell for a recession-
conscious $14 a pop exclusively at Wal-Mart. But she's not claiming to be a designer. Swift tells the Cut, "I don't look at it like I'm branching out as a designer...I have my place as a musician, and I'm going to pretty much stick to that."
Kanye West
The singer, who gives a shout-out to fave brand Louis Vuitton in his song "Stronger," collaborated with the company on a line of luxe sneakers, which were featured on the Paris runways.
Scott Weiland
The former Stone Temple Pilots frontman looks so good shilling the wares he designed for English Laundry, we'll take two of whatever he's selling.
Mischa Barton
Oh, Meesh. It's bad enough that you flaunt your quirky-but-not-actually-cute style on the red carpet. But trying really, really hard to impress it upon others with your headband line, Mischa Barton for Stacey Lapidus? Marissa Cooper would never approve.
Ashley & Mary-Kate Olsen
Let's forget the sisters' Goth and homeless-chic phases ever happened, and instead covet their high-fashion labels the Row (on Ash) and Elizabeth and James (on M.K.).
Natalie Portman
The animal-loving actress gave the world a sneak peek of her vegan footwear on one of its biggest stages, the Cannes Film Festival. But unfortunately, her pet project fell victim to the sagging economy. Her line's parent company, Té Casan, folded, taking her line with it.
Pete Wentz
The rocker and daddy started off Clandestine Industries with casual juniors sportswear, but his latest collection introduces unisex items, organic fabrics, kids' clothes and accessories into the mix.
Sarah Jessica Parker
Hollywood's thriftiest star wanted to create adorable and accessible clothes for the masses when she started her Bitten line—as if we didn't love her enough already. But Steve & Barry's, the retailer who sold her line, fell early in the recession and closed all its stores, leaving SJP's brand stranded for the time being.
Victoria Beckham
Posh's denim and sunglasses line, dVb, was reportedly selling well over in Europe, but not so much in the States. The fearless Spice Girl didn't let it discourage her, though, because she's branched out with a very successful dress line (she's wearing one of her own creations here).
Justin Timberlake
Not only does the former boy-bander codesign William Rast, he's also served as the face of the brand.
Bono
Bono and his wife created Edun to encourage trade with Africa, but stores dropped the collection like hot cakes after shipments arrived late and shoppers complained about fit. Here's hoping Bono can sing his way out of this one.
Lauren Conrad
A former student of the Fashion Institute in L.A., L.C. may be the star with the most design-school cred. Her Lauren Conrad Collection was shelved, but the reality star's bouncing back by shilling a new set of wares at Kohl's.
Lindsay Lohan
It was inevitable that the leggings-loving starlet would be approached to design her own line. But who knew they'd be so successful? And now she's the "artistic adviser" for couture fashion house Emanuel Ungaro.
Sean "Diddy" Combs
The OG musician turned designer, Diddy's hugely successful Sean John cazh sportswear empire has expanded to include tailored suits, underwear and more.