Jay-Z and the New York Yankees are teaming up to sell co-branded merchandise. Items will include baseball caps, t-shirts and hooded sweat shirts, that will feature Yankees and Jay-Z logos. In a news release Thursday, the Yankees said the attire was created to commemorate the first official concerts at the new Yankee Stadium on Sept. 13 and 14, when Jay-Z and Eminem will co-headline. The new merchandise will be available at Yankee Stadium from Aug. 30 to Sept. 14. Via: Yahoo