Lord & Taylor celebrated the U.S. launch of the William Rast fall 2014 collection with a performance by recording artist Jessie J on the rooftop of its Fifth Avenue flagship store last week.

At the same time, William Rast men's and women's shops were unveiled in Lord & Taylor stores across the U.S. and online.

The brand is owned by Sequential Brands Group.

"We are very excited to partner with William Rast's co-founders Justin Timberlake and Trace Ayala to launch their iconic fashion brand in the U.S.,” says Liz Rodbell, president, Hudson's Bay and Lord & Taylor. “We were thrilled to create an exceptional brand launch experience that blended fashion, music and pop culture at our flagship Fifth Avenue store."

In November, William Rast will debut its first men's tailored collection at Lord & Taylor, followed by additional categories including men's dress furnishings (dress shirts, ties and accessories), women's scarves, and men's bags, belts and small leather goods, which will be available beginning spring 2015.

The U.S. launch of William Rast at Lord & Taylor follows a successful fall 2013 rollout in Canada at The Bay and spring 2014 debut in Europe across leading retailers.