Check out our Sean John section for more posts about Sean John.
From the press release:

Sean John Underwear taps internationally renowned recording artist, Nelly, as their new spokesmodel. The first campaign features Nelly donning the Fall collection of underwear basics and loungewear. The campaign was shot by Randee St. Nicholas and showcases Nelly in both interior and exterior shots at a modern home overlooking Los Angeles. Although he is the first spokesmodel for this category, Nelly follows a long list of past and present celebrity models for the Sean John brand including Dwayne Wade, Nas, Snoop Dog, Lil' Wayne, Penelope Cruz, Cassie, and Lauren London. The Sean John Underwear, Sleepwear and Loungewear collection includes the core silhouettes as well as signature styles in luxury fabrics and is available at Macy's and better department and specialty stores nationwide.

Sean "Diddy" Combs said, "I have known Nelly for many years and I really admire his work. To me, Nelly is the quintessential definition of the Sean John man. He has the attitude, the swagger, and most of all the physique that our customers can both aspire and relate to. And let's be honest, all of the ladies out there are going to be thanking us for this campaign. The images are so strong; they speak for themselves. We are truly excited to welcome Nelly into the Sean John family."

Nelly said, "I have been a big fan of Diddy and the Sean John clothing line for years. So, when they asked me to work with them, it was a real honor. I hope my fans will enjoy this campaign as much as I did shooting it."

Styles will include briefs, boxer-briefs, boxers, undershirts, pajamas and robes, among others. Sean John, a privately held company, was created by music icon and producer Sean "Diddy" Combs and made its fashion debut with a men's sportswear collection for the spring 1999 season. In 2004, Sean "Diddy" Combs for Sean John was honored by the Council of Fashion Designers of America as Men's Wear Designer of the Year. With annual retail sales in the United States of over $525 million, Sean John is sold in better department and specialty stores across the country, as well as select retailers around the world. In 2006 Sean John, in partnership with Estee Lauder Companies, launched its signature men's fragrance, Unforgivable, which remains one of the highest selling men's fragrance in department stores in America. Its feminine counterpart launched in the fall of 2007 and continues to be in the top 20 best selling scents in the category. Sean John returned to the runway during New York City's Fashion Week for the Fall 2008 season.

Sean John Underwear and loungewear is manufactured and distributed under license by Basic Resources. Founded in 1993, Basic Resources, a privately held company, headquartered in New York is an established supplier to the market in the men's and women's underwear, loungewear and sleepwear categories. Through its global manufacturing capabilities and ability to develop innovative fashion products, Basic Resources has developed key alliances with leading retailers.