Along with Paul McCartney and Tom Petty, the hugely popular but controversial vest-folk revivalists Mumford & Sons were scheduled to headline this weekend’s Bonnaroo Festival. But now, that won’t happen, and Bonnaroo organizers will have to find someone else to fill tomorrow night’s headliner spot. Mumford & Sons have a good reason for the cancellation: Rolling Stone reports that bassist Ted Dwane is recovering after undergoing emergency to remove a blood clot from his brain. The band also had to cancel headlining sets at Colorado’s Telluride Bluegrass Festival and Cricket Wireless Amphitheater in Kansas. Below, read the band’s statement.

Dear friends,

It is with great joy that we can announce that Ted has been discharged from hospital and is on the road to a full recovery. The surgery went well, and the excellent medical team helping him are very pleased with his progress. He has been nothing short of heroic in how he has handled the whole ordeal, and now it has been medically proved that he does indeed have a brain.

Today, however, also marks the end of our Summer Stampede Tour. We were hoping to have made it out by Bonnaroo this weekend. But it is with sadness that we have to announce the cancellation of our scheduled performances at both Bonnaroo and Telluride Festivals, and our show at Cricket Wireless Amphitheater in Bonner Springs, KS. If we could’ve we would’ve, you know that about us. We trust that you can respect our collective desire to encourage Ted to make a full recovery, and that this is based purely on the medical advice we have received.

On behalf of Ted, and all of us really, we would like to thank every one for their compassion and support at this time and we are very excited to get back out on tour as soon as we can.

Mumford aren’t the only last-second Bonnaroo cancellation. Earl Sweatshirt is reportedly too ill to perform, so DIIV, who had to delay their set after missing a flight, will fill Earl’s spot.

So: Possible last-second Mumford replacements. Go!

UPDATE: They’ve announced the replacement, and it’s Jack Johnson, so yikes, nevermind.