Carrie Underwood and Vince Gill Sing”How Great Thou Art” [VIDEO]

Move over Martina McBride.  Step aside Reba.  There's a new powerhouse in country music.  Carrie Underwood performed a jaw dropping performance of "How Great Thou Art" with Vince Gill on the CBS special "Girl Night Out."  All I can say is WOW!  Take a listen.