Sing a Christmas Cracker: 20 fabulous, non-religious songs for singing at Christmas. This useful collection is perfect for winter term and Christmas concerts. The new edition includes a CD of show-stopping backing tracks. 20 fabulous, non-religious songs for singing at Christmas. This useful collection is perfect for winter term and Christmas concerts. The new edition of Sing a Christmas Cracker includes a CD of show-stopping backing tracks. Including Have yourself a merry little Christmas, The silver sleigh ride and Jingle bell rock, this pack is perfect for anyone putting on a seasonal vocal performance - from music groups for children to adult choirs. Also contains simple second parts for voice/ recorder.