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.