Larry the Cable Guy is the latest addition to the list of participants at the seventh annual Toby Keith & Friends Golf Classic taking place Friday and Saturday (May 21-22) in Norman, Okla. He and Keith will co-host Friday's dinner and auction prior to Saturday's tournament. David Allan Coe is among the musicians scheduled to perform at the dinner. The auction will include memorabilia donated by Miley Cyrus, Brett Favre, Darius Rucker, Garth Brooks, Michael Phelps, Derek Jeter, Emmitt Smith, Greg Maddux, Maroon 5 and many more. The two-day event benefits the Toby Keith Foundation in its goal to fund the OK Kids Korral, a 16-room guest lodge which will house pediatric cancer patients and their families on the grounds of Oklahoma University Medical Center. The 30,000-square-foot facility is scheduled to open in 2012.