MARCH FOR PAYMENT: Former “Project Runway” contestant Chris March managed to navigate a relatively conflict-free path through the show’s fourth season. His post-reality TV career departed from that pattern last month when he sued designer Thierry Mugler for allegedly failing to pay him for work he performed as head of costumes for Beyoncé Knowles’ “I…Am” tour. According to a complaint filed in New York Supreme Court on July 23, Mugler hired March to create, pattern and fit costumes for the tour, but has not paid March and Carelli Costumes Inc. $44,502.66 worth of submitted invoices. A Mugler representative declined comment Thursday. The suit does say Mugler and his Tancrede Prinz LLC did pay separate invoices in the sum of $75,538.97. March’s attorney, Leslie Ben-Zvi, reiterated the suit did not name Knowles herself as a defendant. “Chris continues to be a fan and great admirer of Beyoncé, who looks beautiful in everything she wears, especially Chris’ costumes,” Ben-Zvi wrote in an e-mail. March and Carelli are seeking payment of the invoices and attorneys’ fees.

TEMPERLEY’S NEW LINE: Temperley London’s world is about to get a little larger. The London-based ready-to-wear label will launch a second line for spring, with slightly lower price points than the main collection. Prices for the line, which is yet to be named, will run from $50 to $500, according to sources close to the company.

FASHIONAIR GOES LIVE: Fashionair, the multimedia Web site founded by Simon Fuller and Sojin Lee, is gearing up for its official launch Sept. 3. While the site has been operating in a beta mode, on a members-only basis over the summer, it will be open to all consumers from September. Those already signed up to the site have been able to view features, which run from online videos profiling industry figures including Val Garland, Ellen von Unwerth, Julia Restoin Roitfeld, Thakoon Panichgul and Anna Sui to 7 Days of Chic, a section that spotlights the style picks of a clutch of creative women. When the site goes live, the footage will be updated regularly.

And the Web site’s launch will be marked with some real-world fetes, too. While plans are under way for a launch event in the U.S. in the fall, in September, Fashionair will partner with London’s Selfridges to mark the British launch. From Sept. 7 to 27, the company will set up an installation on the ground floor of Selfridges’ Oxford Street store, in the women’s street fashion section. Events centered around the installation will range from a video casting for the next presenter of Fashionair, with the footage to be ultimately judged by Sarah Doukas, Suzy Menkes and Roland Mouret, to the chance to appear in Selfridges’ windows and the opportunity to record footage in Fashionair’s video booth, which may eventually appear on the Web site.