Darius Rucker has invited Radney Foster, Randy Houser, Jamey Johnson and Jake Owen to perform at his benefit concert on June 7 at the Wildhorse Saloon in Nashville. Proceeds will benefit St. Jude Children's Research Hospital in Memphis. "The friends joining me for this benefit concert all share the same dream I do for a cancer-free world, but until that can happen, we need to raise awareness and funds for this incredible organization," Rucker said. "It's going to be a great night of music and stories."