Holly Happy Days is the 12th studio album and first holiday album by Indigo Girls, released on October 12, 2010 by Vanguard Records. Track listing "I Feel the Christmas Spirit" (Joe Isaacs) "It Really Is (A Wonderful Life)" (Chely Wright) "O Holy Night" (John S. Dwight) "Your Holiday Song" (Emily Saliers) "I'll Be Home for Christmas" (Buck Ram, Kim Gannon, Walter Kent) "Mistletoe" (Amy Ray) "Peace Child" (Shirley Murray/Bernadette Farrell) "The Wonder Song" (Amy Ray) "In the Bleak Midwinter" (Traditional) "Happy Joyous Hanukkah" (Woody Guthrie) "Angels We Have Heard on High" (Traditional) "There's Still My Joy" (Beth Nielsen Chapman, Melissa Manchester, Matt Rollings) Personnel Indigo Girls Amy Ray – vocals, acoustic and electric guitar, mandolin Emily Saliers – vocals, acoustic guitar, nylon string acoustic guitar, ukulele Additional musicians Luke Bulla – fiddle, mandolin, rhythm acoustic guitar Jim Brock – percussion, finger cymbals Alison Brown – banjo, piccolo banjo Brandi Carlile – guest vocals Victor Krauss – bass Mary Gauthier – guest vocals Janis Ian – guest vocals Carol Isaacs – accordion, piano, harmonium Lloyd Maines – pedal steel and dobro John Painter – electric guitar Don Saliers – piano Julie Wolf – guest vocals and additional vocal arrangement Production Peter Collins – production Denise Plumb – art design Trina Shoemaker – mixing Indigo Girls albums 2010 Christmas albums Albums produced by Peter Collins (record producer) Christmas albums by American artists Folk rock Christmas albums Vanguard Records albums Covers albums