Following the curtain call, cast member Dule Hill took to the stage to welcome to the stage the Tony Award-winning chairman of The Actors Fund, Brian Stokes Mitchell. Mitchell explained that The Actors Fund had received a call from a supporter who would pledge a $10,000 donation if they could arrange for k.d. lang to perform her iconic rendition of Leonard Cohen's "Hallelujah" on stage. k.d. agreed, and took to the stage for a special encore, which was received with an immediate standing ovation. Here's a look at the performance: