Chris Martin of Coldplay has come down with a serious lung infection and has to postpone upcoming shows in Brazil.

Taking to social media on Tuesday (October 4), the band wrote: “Chris has been put under strict doctor’s orders to rest for the next three weeks.”

The group went on to say that they’re working as fast as possible to lock in the new dates.

They also stated that they’re optimistic that Chris “will return to good health” after his medical break. They went on to apologize to their fans for the inconvenience.