Woodstock 50 Where: Watkins Glen, NY When: Aug. 16-18 The headliners: Miley Cyrus, JAY-Z, The Raconteurs, Santana, Chance the Rapper, The Black Keys, Imagine Dragons, Halsey, Cage the Elephant, The Killers, The Lumineers, Dead & Company, and Janelle Monáe. Why we're excited: It'll be the 50th anniversary of the legendary music festival! See the full Woodstock 50 lineup. Image Source: Getty / Kevin Mazur