Aldean was performing on stage at the festival when the shooting began in Las Vegas.
"We hurt for you and we hurt with you," said Aldean. "But you can be sure that we're going to walk through these tough times together, every step of the way. Because when America's at it's best, our bond and our spirit... it's unbreakable."
The CMA Awards air November 8 on ABC at 7 p.m. (CT).