Kenny Chesney provided fans at Nashville's LP Field with a thrill when he invited Keith Urban to the stage, who he described as "one of my best friends in the world." The new Mr. Nicole Kidman joined Chesney on 'Somebody Like You,' as part of Saturday's star-studded concert before 47,000 fans.

The workaholic Chesney told the Tennessean he takes playing for a crowd that size in the country music capital as a personal challenge. "There are going to be some people there that have a 'Prove it to me again' mentality, like 'Why you?'" he said. "That's always been there for me in Nashville. All they've got to do is walk around the parking lots and see why me: It's people having a blast."

Other acts on the bill included Gretchen Wilson, Big & Rich, Dierks Bentley and Little Big Town.

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