James Hetfield
Exit sunlight! The Metallica frontman is collaborating with Sutro Eyewear to design limited edition sunglasses.
Jennifer Lopez
The diva and her husband, Marc Anthony, are set to launch a lifestyle brand sold exclusively at Kohl's.
Kellan Lutz
We have a feeling there will be a lot of Twihards walking around in Dylan George duds, seeing as this beloved vamp is not only the face of the clothing line but also helped design it.
Rachel Zoe
You're going to die over the diva's new line for QVC, which features her signature fur vests and chunky jewelry priced for the common folk. It's bananas.
Mariah Carey
Mimi's partnering up with the Home Shopping Network to sell a lifestyle line consisting of shoes, jewelry and a limited-edition version of her fragrance Luscious Pink. Expect to see a lot of butterflies!
The Kardashians
Keep up with their kouture! Kris, Kourtney, Kim and Khloé are launching K-Dash by Kardashians for QVC, a collection of tunics, leggings, belts, handbags and more, on the cable shopping channel.
Ivanka Trump
The Donald's gorgeous daughter joins the ranks by putting her stamp on shoes and handbags for Marc Fisher Footwear that will debut spring 2011.
Britney Spears
So Brit's not the first person you think of when the word stylish comes to mind, but the pop star has designed her own line for Candie's that will be sold at Kohl's.
Jenni "JWoww" Farley
The Jersey Shore guidette is working every second of her 15 minutes of fame—she started her Filthy Couture clothing line after the show's first season.
Amy Winehouse
Whoa, color us surprised over the announcement that the embattled singer is collaborating with British label Fred Perry on a clothing collection.
Madonna
Awww, Madge is designing a line of juniors' clothes (sold exclusively at Macy's) that was inspired by her 13-year-old daughter, Lourdes. Label name? Material Girl, natch.
Mary-Kate and Ashley Olsen
The sisters look so professional while out promoting their latest fashion venture, Olsenboye, an affordable juniors collection available at JCPenney.
Kim Kardashian
The newly svelte reality star is streching her creative muscles, designing a line of fitness apparel with Brazilian company Muscle Flex.
Heidi Klum
Preggers ladies, rejoice! The supermodel mom—whose fabulously chic maternity style is well-documented—has created her own lines with a Pea in the Pod (Lavish by Heidi Klum) and Motherhood Maternity (Loved by Heidi Klum).
Emma Watson
Harry Potter's Hermione Granger is working her magic on a line of sustainable clothes with fair-trade brand People Tree. Proceeds from the sales go to help fair-trade farmers and artisans in developing countries.
Lisa Loeb
The '90s singer and former E! reality star is designing glasses (duh!) with Classiques Eyewear. It's about friggin' time.
Selena Gomez
The actress and singer can add "designer" to her résumé—she's working on an ecofriendly clothing and accessories line called Dream Out Loud.
Katie Holmes
Mrs. Cruise models a piece from Holmes & Yang, a high-end fashion line for women and kids that she created with her stylist, Jeanne Yang. The label is available only at posh boutique Maxfield in Los Angeles.
Kenny Chesney
Blue Chair Bay, the country singer's new fashion venture, consists of casual duds with that broken-in favorite-shirt feeling. Sounds comfy!
Beyoncé
First there was House of Deréon. Now Queen B and her mom, Tina Knowles, are adding to their budding fashion empire with a junior's line called Sasha Fierce for Deréon.
Miley Cyrus
The Hannah Montana star hopped on the designing bandwagon, joining forces with Hervé Léger's Max Azria to do a low-priced line of clothes, shoes and accessories sold exclusively at Wal-Mart.
David Beckham
Soccer's most stylish star is designing a collection with Undefeated shoe boutique owner James Bond for Adidas Originals. According to WWD, they be updating "classic American sportswear with fashionable silhouettes and details." But word is, Becks won't be using his likeness to promote the duds—too bad!
Nicole Richie
More proof that the socialite has left her partying ways long behind her: The mother of two started a fashion line called Winter Kate that includes apparel, accessories and footwear, and she's also designed a maternity line for a Pea in the Pod.
Gwyneth Paltrow
First there was Goop, and then the actress collaborated on a clothing line for French label ZOEtee's. Best part? All proceeds go to charity.