ACM Girls Night Out – Carrie Underwood and Vince Gill Perform – How Great Thou Art (VIDEO)

Friday night CBS aired the Girls Night Out: Superstar Women of Country Concert that was taped the Monday, following the 2011 ACM Awards in Las Vegas, NV.

Carrie Underwood and Vince Gill brought the crowd to their feet with their amazing rendition of "How Great Thou Art".