Ding Dong! Neil Patrick Harris and the Stars of The Book of Mormon Perform 'Hello' at the 2012 Tony Awards

The 2012 Tony Awards started off with a bang, well actually a doorbell, as Nic Rouleau, Jared Gertner and the stars of The Book of Mormon began the June 10 ceremony with a star-studded performance of "Hello," ringing the dressing room doorbells of some of the night's biggest nominees, including Cynthia Nixon (Wit), James Earl Jones (The Best Man) and Judith Light (Other Desert Cities). Host Neil Patrick Harris joined in on the fun. Click below to watch this entertaining number!