Willie Nelson Canceled a Show Because the High Altitude Caused Breathing Problems

WILLIE NELSON had to leave the stage on Sunday because of breathing issues.  He was about an hour into the performance at his show in Salt Lake City when he told the crowd he’d be right back . . . but he never returned.

The breathing problem was caused by the high elevation.  He was playing at the USANA Amphitheatre, which is at 4,300 feet.

He did go to the hospital just to be sure.  But he’s fine.

He posted an apology on Twitter, writing, “I’m sorry to have to cut the Salt Lake City show short tonight.  The altitude got to me.  I am feeling better now and headed for lower ground.”