VIDEO : Hairspray Live Add Rosie O'Donnell, Sean Hayes To Cast

NBC announced at the Television Critics Association summer meeting that Sean Hayes and Rosie O'Donnell are joining the cast of NBC's "Hairspray Live!" The network said on Tuesday, Hayes will take on the role of dress shop owner Mr. Pinky, while O'Donnell will play a tough gym teacher in the production set to air in December. They join a cast that represents a "slew" of Oscar, Emmy and Tony award winners, that include Harvey Fierstein, reprising his Tony Award-winning role as Edna Turnblad in the Broadway production that premiered in 2004. The musical also stars Kristin Chenoweth, Jennifer Hudson, Derek Hough, Martin Short and pop star Ariana Grande.