Country music star Ronnie McDowell will undergo surgery after he suffered a recent stroke on stage in Pennsylvania.

The musician, who reached No. 1 on the country charts with “Older Women,” started slurring his words while onstage at the Summer Solstice Music Festival in Oley, Pennsylvania on June 21, PennLive reported. His son, Ronnie Dean McDowell Jr., helped him off stage, and an EMT took McDowell to the hospital.

The 75-year-old singer has since been released, and went on to perform at a concert in Kentucky this past weekend.

“Hi folks. Yes, I had a stroke,” he said in a Facebook video he posted while on a two-mile walk last Thursday. “But you know what, I’m walking.”

His son, McDowell Jr., posted on Tuesday morning that he hoped his dad would have a surgery date soon.

“My Dad called me last night and said, ‘well Son, I think that I just picked up the most mail that I’ve ever received,’” he wrote. “I could just hear this happiness in his voice.”