Keith said he didn't want to downplay the disaster, but that the people of the area are "resilient" and will rebound.
"It's just devastating but there's probably nobody better prepared for tornados than Oklahoma, especially the Moore area," Keith said. "That is known as Tornado Alley, Twister Alley. They'll rebuild, but it was just awful those kids were in school when it happened."
During recording breaks, Keith has fielded calls about putting together a benefit for tornado victims and said he's been in contact with the University of Oklahoma about possibly using the football stadium.
"I know as soon as I start sending out some feelers that I'll get a lot of people in there," Keith said. "Hopefully, we can use music to heal some of the money problems right away."
Follow AP Music Writer Chris Talbott at http://twitter.com/Chris_Talbott.