Katharine McPhee visited the season finale of NBC’s The Voice to offer a preview of and promote her new musical drama Smash, premiering in early 2012 alongside Season Two of The Voice.

The American Idol Season Five runner-up appeared on stage after coach Christina Aguilera and finalist Beverly McClellan sang Aguilera’s “Beautiful.” McPhee also talked about doing her own version of the song on Smash.

Smash is about an out-of-town tryout for a Broadway musical, and centers around a songwriting team (played by Debra Messing and Christian Borle), who write a musical about Marilyn Monroe. They must then decide between two people to play the lead role: Karen, (played by McPhee) a talented young newcomer, and Ivy (played by Megan Hilty), a theater veteran. The show was developed by NBC's Robert Greenblatt, Steven Spielberg and Craig Zadan and Neil Meron, the producers of Hairspray.

Watch McPhee on The Voice here: