Aerosmith’s Steven Tyler suffered “vocal chord damage.”
The band’s singer sustained the injury after their performance on Saturday in Chicago, forcing them to cancel a number of scheduled dates on their farewell tour.
"I’m heartbroken to say I have received strict doctor’s orders not to sing for the next thirty days," Tyler announced on the band's social media platforms Monday.
"I sustained vocal cord damage during Saturday’s show that led to subsequent bleeding. We’ll need to postpone a few dates so that we can come back and give you the performance you deserve."
It is unknown if Tyler will need additional medical care after vocal rest.
Detroit, Chicago, Washington, D.C., Toronto, Raleigh, and Cleveland were among the cities on the tour that saw their performances rescheduled.
"All previously purchased tickets will be honoured for the rescheduled dates," the post stated.
"Refunds will be available for those unable to attend. Fans with questions regarding refunds are asked to reach out to their point of purchase."
The band, which has been a mainstay in the business for 50 years, kicked out its final Peace Out tour in Philadelphia at the beginning of September.
Aerosmith has also faced problems before over Tyler's health. The band postponed the final two performances of their Las Vegas engagement in December 2022.