Dollywood Squares: Ashley McBryde, Béla Fleck, Brad Paisley, Carly Pearce, Carrie Underwood, Darius Rucker, Ella Langley, Kelsea Ballerini, Kristen Bell, Kristin Chenoweth, Lady A, Lainey Wilson, Little Big Town, Lukas Nelson, Molly Tuttle, Reba McEntire, Ricky Skaggs, Sierra Hull, Vince Gill and Zac Brown will perform during the CMA's I Will Always Love You: A Celebration of Dolly Parton, airing live from Nashville Oct. 21 on ABC and Disney+ and next day on Hulu (CAT 9/25). Proceeds will benefit Parton's Imagination Library.