Kris Kristofferson, Judy Collins and Dirt Farmer Band have joined the lineup for Clearwater’s Great Hudson River Revival. The annual festival will return to Croton-on-Hudson on June 15 and 16. Other recent additions include Sierra Leone’s Refugee All Stars and The Last Bison. These acts join a lineup that already includes Sharon Jones and the Dap-Kings, Son Volt, Patterson Hood, Jason Isbell, Mavis Staples, Hot Tuna & Steve Kimock, David Bromberg, Antibalas, Dumpstaphunk and Keller Williams & The Travelin’ McCourys, among others. Event founder Pete Seeger will also be onsite throughout the weekend.