Rucker, who first visited St. Jude 10 years ago, said he was "struck ... by how St. Jude not only cares for their patients, but also their patients' families," according to a news release.
"They believe that a financial burden is the last thing a family should face when their focus needs to be on helping a kid get better, and St. Jude makes sure that their patients never pay a dime," he said in a statement. "It's an honor for us to be able to help them continue such an important mission."
>> Need something to lift your spirits? Read more uplifting news
The most recent concert, held Monday at the Ryman Auditorium, featured guests such as Luke Bryan, Sheryl Crow, Kane Brown and Jimmie Allen. The event is considered the "unofficial kickoff to CMA Fest," the news release said.
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