Diesel Expanded in the U.S. This Year; Amber Rose Commits Party Foul

Amber in her tight dress.

• Just so you know, Renzo Rosso "will continue to believe in the U.S.," even though he calls it a "tough moment" economically. Americans have apparently spent enough on overpriced Diesel things to allow the brand to grow nearly 2 percent here this year. [WWD]

Yves Saint Laurent's partner, Pierre Bergé, wrote a book in French called Letters to Yves, which will come out in February. He wrote it six months after the designer died of brain cancer. [WWD]

• Carine Roitfeld's longtime partner, Christian Restoin, is helping revive the label Equipment. Carine is thought to have worn an Equipment blouse during Paris Fashion Week. So it ooks like Christian is earning his keep. [Fashionologie]

• Martha Stewart thinks J.Crew creative director Jenna Lyons's brother is "handsome." [WWD]

• Amber Rose had to lean out of the bathroom at a party this week to ask a fellow lady in attendance to zip up her skintight dress. "I have a hard time staying in this thing," she said. "But Kanye loves it." Classy! [Page Six/NYP]