8(Piano/Vocal/Guitar Artist Songbook). This collection provides piano, vocal and guitar arrangements corresponding to the unique a cappella vocal treatments that Pentatonix presented on their holiday CD. Songs: Dance of the Sugar Plum Fairy * Winter Wonderland/Don't Worry, Be Happy * Hark! The Herald Angels Sing * Let It Go * Mary, Did You Know? * It's the Most Wonderful Time of the Year * Santa Claus Is Comin' to Town * Silent Night * Sleigh Ride * That's Christmas to Me * White Winter Hymnal.