Post Malone stepped into a large hole on the stage during his concert on Saturday night (September 17) and had to cancel the rest of the show.
More than mid-way through his performance in St. Louis, he accidentally fell into an open trap door. At the time, it was being used to lower his guitar.
After crashing hard on the stage floor, he clutched his ribcage. He was taken in the back for quick medical attention and about 15 minutes later, clearly in pain, he canceled the rest of the show.