While the rest of the music industry scrambles, Jay-Z is at the top of his game. In addition to releasing one of the year's most anticipated albums, 'The Blueprint 3,' and announcing a Sept. 11 benefit concert, the rap mogul has designed a limited edition Rocawear t-shirt in honor of legendary tennis star Arthur Ashe.

The customized shirt will be released on the 40th anniversary of the National Junior Tennis League and Learning Network (NJTL), an organization co-founded by Ashe. Proceeds from the shirt sales will benefit the NJTL and the Arthur Ashe Endowment for the Defeat of AIDS.

"I am thrilled that someone of Jay-Z's stature would take part in this project," said Arthur Ashe's widow, Jeanne Moutoussamy-Ashe. "This shirt will honor the legacy of my husband and remind people of his contributions to both the sport of tennis and this country's underprivileged youth."

The NJTL's 40th anniversary will be celebrated on Sept. 10 at the Billie Jean King National Tennis Center, as part of the U.S. Open's opening ceremonies.

The shirt will be available at the Arthur Ashe Endowment Booth at the U.S. Open, and can also be purchased online here.