Jay-Z, Dead & Company and the Killers will headline the 50th anniversary Woodstock festival this summer in Watkins Glen. The event is separate from an anniversary concert planned at the site of the original festival in 1969. Woodstock co-founder Michael Lang announced Tuesday that Miley Cyrus, Santana, Imagine Dragons, Robert Plant, the Black Keys and Chance the Rapper will also perform at Woodstock 50. The concert will take place Aug. 16-18.