The fourth annual Toby Keith & Friends Golf Classic raised more than $500,000 for Ally's House, a nonprofit organization assisting Oklahoma children who have cancer, it was announced Thursday (May 3). The event took place April 27-28 in Oklahoma City. The largest single contribution was received during an auction at a party that featured a performance by Restless Heart. A group of golfers pooled their money to submit the high bid of $31,000 for Keith to join them as a team member during the following day's golf tournament. Prior to this year's event, Keith had already helped raise more than $1.1 million for the charity.