Country music legend Willie Nelson has canceled shows in Nevada and California.
The cancellation came after Nelson left a San Diego concert after performing one song.
The San Diego Union-Tribune reported that Nelson left his show at a San Diego casino on Saturday after the first song, “Whiskey River.”
Fans told the newspaper that Nelson was coughing and apparently had difficulty breathing.
Nelson keeps up a rigorous touring and recording schedule.
nelson has not released any statement regarding his health.