The Mets still plan to announce a third show for Aug. 15, after the Mets play the Pirates.
A popular feature at Citi Field in recent years, last year's Postgame Concert Series featured 50 Cent, Boyz II Men and Huey Lewis and the News.
Anthony DiComo is a reporter for MLB.com. Follow him on Twitter @AnthonyDicomo. This story was not subject to the approval of Major League Baseball or its clubs.