Atlanta’s ONE Music Fest is celebrating it’s five-year anniversary this year and have tapped hip-hop heavyweights Nas and Kendrick Lamar for headlining performances. The one-day event takes place on Saturday, September 13 at Aaron’s Amphitheater at Lakewood. Also featured on the lineup are Jhené Aiko, Method Man & Redman, Bilal, Daley, Amel Larrieux, Isaiah Rashad, Alice Smith, Cody Chesnutt, Lakim, Andre Power, and The Whooligan. Event organizers are expecting record numbers in attendance this year. They have also launched an app, which is available for free download to festival-goers.