topshop

Mystery solved. After a week of teasing, Topshop has revealed that Kate Bosworth is the star of its 2012 holiday campaign.

In a film directed by fiancé Michael Polish, Bosworth stands atop a piano and sings a sultry rendition of "Winter Wonderland" whilst wearing a backless sequined dress that she and Topshop designed just for the occasion. The lighting is moody, the atmosphere is hazy, and yes, that is Bosworth's actual singing voice. If this scene looks a little familiar, that's because it was inspired by another vampy blonde's legendary musical performance a few decades back: Michelle Pfeiffer's "Makin' Whoopee" in the 1989 film The Fabulous Baker Boys.

While Bosworth's shoes, dress, and makeup will all be available in some capacity on Topshop.com, those registered on the site are in for an even cooler treat: a personalized holiday message from the actress via the video's interactive capability.

"This project brings together two important aspects of my life: cinema and fashion," Bosworth says. "I hope everyone enjoys watching it as much as we did making it."

Watch the video above, download the song, then visit Topshop for more behind-the-scenes goodies.

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Those stories and more in our daily news roundup.

• To celebrate the release of her book, Grace: A Memoir, Grace Coddington will field questions from Vogue's Twitter account (@VogueMagazine) tomorrow, Nov. 20. [WWD]
• The iPad is becoming the key to luxury ecommerce success. [WWD]
• British designer Emma Cook's whimsical collection of apparel and home decor for Topshop will be available Dec. 6. [Elle]
• See by Chloé design director Laure de Sade has left the company. It is not known what her next move will be. [Vogue UK]
• Chris Burch, founder and CEO of Burch Creative Capital, has announced that he is slowing down the development of two nascent brands to focus on growing his other labels, C. Wonder and Monika Chiang. [WWD]
• Stella McCartney has designed a White Ribbon badge to run during a two-week campaign for the International Day for the Elimination of Violence Against Women on Nov. 25. [Vogue UK]
• Hugo Guinness says that humor is his main source of inspiration for his artwork, which is currently being featured in a line of accessories for Coach. [FashionEtc]
• Anna Karenina costume designer Jacqueline Durran says 1950s couture inspired the movie's costumes because it has "a stark, architectural approach which doesn't involve a lot of surface detail but at the same time captures a kind of romanticism." [Fashionista]
• The Maison Martin Margiela for H&M collection hasn't sold out yet. [Racked]
• Jordi Constans is the new CEO of Louis Vuitton, replacing Yves Carcelle. [WWD]
• Vanessa Steward's second capsule collection for A.P.C. will expand into the company's bread and butter: denim. [Style.com]
• Iris Apfel's personal style mantra is "more is more and less is a bore!" [Fashionista]

Demi Lovato and her fellow The X Factor judges and finalists partied in LA last night. Demi stood out in her Topshop red shift dress ($100), which she topped with a studded black leather jacket by Religion Lynch. Matching red lips and black patent Christian Louboutin peep-toe pumps completed her red-carpet look. Score Demi's exact little red dress to wear all yearlong. During Fall, pair it with leggings or opaque tights and booties, or throw on a chunky sweater to give it a separates effect. Come Spring and Summer, ditch the tights and boots and throw on a denim jacket for a fabulous warm-weather vibe.

Kate Bosworth took a romantic stroll with her leading man Michael Polish in LA, working the printed-denim trend in a subtle way via these Current/Elliott paisley-print jeans ($198). She kept the rest of her outfit equally simple with an off-white tee, a chain-handle bag, aviators, and these tan Topshop Western shoes ($130). If you want to dabble with printed jeans but are scared of all those loud styles out there, Kate's jeans are the perfect way to ease your way in. Score them, as well as her shoes, to work into your Fall wardrobe.

Over the weekend, 90210 actress Shenae Grimes stopped by an event at The Grove in LA shining bright in a pair of Topshop gold jacquard pants ($90). While these jazzy bottoms may not seem versatile, they actually have the potential to dazzle in many ways. We love how Shenae tamed hers with a black button-down blouse, which she tied at the bottom, and black ankle-strap pumps. You can also wear these trousers with a white button-down, a simple white or gray tee, or with a sassier bustier top when the holidays roll around.