Wakarusa, which previously announced The Roots, STS9, Young the Giant and others for their 2015 festival, set to be held from June 4-7 at Mulberry Mountain, announced more of its lineup last week and this morning. The group includes Ben Harper and the Innocent Criminals, Chance the Rapper, Major Lazer, Thievery Corporation, Umphrey’s McGee, Slightly Stoopid, Portugal. The Man and many more. Tickets are on sale now.