We’re thinking of you, Willie Nelson! The 84-year-old singer has been forced to cancel several of his upcoming concerts after suffering breathing problems earlier this week. According to The San Diego Union-Tribune, Willie fell ill while performing his first song, “Whiskey River,” during a show at Harrah’s Resort SoCal in San Diego, CA on Saturday, Jan. 6. Eyewitnesses told the outlet that he was forced to leave the stage mid-song because he was “coughing and wheezing.”

Willie’s rep later said the star had “a bad cold or the flu,” and is now spending the remainder of this week resting at his Texas ranch. Because of his illness, Willie has also canceled two upcoming concerts at the Cosmopolitan in Las Vegas and a show in Laughlin, NV. He is now scheduled to return to the stage on Wednesday, Feb. 7 in Macon, GA.

Willie’s unfortunate breathing problems are just the singer’s latest ailment. Last August, he was hospitalized for respiratory issues. At the time, he told his fans on Twitter, “I am 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.” Earlier in 2017, the musician similarly canceled several shows because he was suffering from a “bad cold.” Reports subsequently surfaced that Willie was “deathly ill,” but his rep later confirmed he was “perfectly fine.”

Interestingly, Willie isn’t the first singer who has had to cancel concerts due to illness this week. On Monday, Jan. 8, Celine Dion stepped away from her Las Vegas residency at The Colosseum at Caesars Palace to recover from a virus. Celine reportedly canceled her Saturday, Jan. 6 concert because of the illness and is still at home recuperating. Sources then revealed that Celine hoped to resume her show schedule today, Tuesday, Jan. 9.