Celebrating the 90th birthday of Stephen Sondheim by broadway super stars: 0:18 - Stephen Schwartz - "Prologue" (Follies) 3:28 - Broadway Musicians - "Overture" (Merrily We Roll Along) 8:47 - Sutton Foster - "There Won't Be Trumpets" (Anyone Can Whistle) 12:47 - Neil Patrick Harris - "The Witch's Ra