The Roots just announced the lineup for the 9th annual Roots Picnic in Philadelphia, and it's stacked. The headliners include Future, Usher, and Leon Bridges, while Blood Orange, Kehlani, Swizz Beatz, DMX, Metro Boomin, and Migos​ will also perform. The event will take place on June 4 at the Festival Pier in Philadelphia, though tickets aren't yet available for the show. More information can be found on the official website for the festival here, while you can see the full lineup below.