Gallagher, the prop comedian known for smashing watermelons on stage, suffered a heart attack Wednesday before he was scheduled to perform at a club in Texas.
His prognosis is good, but he was placed in a medically induced coma to recover, his manager told the Huffington Post
The comedian (real name: Leo Anthony Gallagher, Jr.), 65, conducted a meet-and-greet with fans at the club Hat Tricks in Lewisville, Texas, Wednesday and suffered the heart attack shortly afterwards in the club's green room, according to reports.
He will remain in the coma until Friday afternoon, the Huffington Post reports.
It's the second heart attack in as many years for Gallagher, who collapsed on stage in Minnesota in 2011.