Celebrity Choir Master Nick Lachey with his choir on Clash of the Choirs.NBC/Aaron Asch - Saturday, December, 15, 2007, 1:15 AM

Celebrity Choir Master Nick Lachey on Clash of the Choirs.NBC - Saturday, December, 15, 2007, 1:15 AM

Maria Menounos hosts Clash of the Choirs.NBC/Mitch Haaseth - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Kelly Rowland with her choir on Clash of the Choirs.NBC/Craig Busch - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Kelly Rowland on Clash of the Choirs.NBC - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Patti Labelle With Her Choir on Clash of the Choirs.NBC/Eric Liebowitz - Thursday, December, 13, 2007, 10:13 PM

Patti LaBelle on Clash of the Choirs.NBC - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Michael Bolton With His Choir on Clash of the Choirs.NBC/Eric Liebowitz - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Michael Bolton on Clash of the Choirs.NBC - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Blake Shelton With His Choir on Clash of the Choirs.NBC/Wendy Mutz - Thursday, December, 13, 2007, 10:13 PM

Celebrity Choir Master Blake Shelton on Clash of the Choirs.NBC - Thursday, December, 13, 2007, 10:13 PM