Babst Calland joins the Allegheny County Parks Foundation for Twilight Picnic for the Parks on Saturday, August 26, 2017. This event will take place at the historic Hartwood Acres Mansion and will feature a private performance by Pittsburgh’s own Billy Porter, acclaimed Tony® and Grammy® Award-winning actor, singer, director, composer and playwright. The luster of twilight will provide the backdrop for al fresco style cocktails and dinner that will elevate the...