Nine of the most popular covers by these YouTube superstars whose video mashups featuring creative piano and cello arrangements have brought them a worldwide audience. This collection features piano solo arrangements with an optional cello part for the songs: Bless the Broken Road * Fight Song * Jesu, Joy of Man's Desiring * Line upon Line * Say Something * A Sky Full of Stars * Thinking Out Loud * What Are Words * When You Say Nothing at All.