Debra Messing, Katharine McPhee & More Sing Their Hearts Out In NBC's...

Debra Messing, Katharine McPhee & More Sing Their Hearts Out In NBC's New Musical Drama 'Smash'

At the NBC Upfronts, the cast of NBC’s new musical drama, “Smash” (Debra Messing, Angelica Huston, Katharine McPhee, Brian d’Arcy James, Christian Borle), explains the concept of the show, so how is it different from “Glee”? Plus, will everyone in the cast sing?