The impressive roster of talent at the upcoming Big Valley Jamboree this summer continues to grow, with superstar Martina McBride added to the lineup.

Keith Urban and Miranda Lambert have been previously announced, and yesterday’s additions to the lineup include country legend Ronnie Milsap and rising country rock group Jo Hikk.

Additional Main Stage artists already announced for Big Valley Jamboree 2010 include the Oak Ridge Boys, Tracy Lawrence, Kevin Costner and Modern West, Doc Walker, Jack Ingram, and Crystal Shawanda. The event runs July 29 to Aug. 1 in Camrose.

For more information on the event, please visit

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