Earlier this week, we learned that Mumford and Sons bassist Ted Dwane suffered from a blood clot in his brain, causing him to undergo emergency surgery. As a result, the band has been forced cancel their appearance at this weekend’s Bonnaroo Music & Arts Festival in Manchester, Tenn. Filling in for the folk-rock heroes will be Hawaii-born singer Jack Johnson, Bonnaroo organizers have announced.

Johnson made the announcement in a recent press release:

I was on my way to Bonnaroo to sit in on a set with my friends ALO last night when we got the call asking if I could possibly help out and cover for Mumford and Sons. I heard the news about Ted Dwane and was happy to know that he was on his way to recovery. I called my band and asked if they were up for it. Long story short - they are headed this way. I've got a lot of lyrics and chords to relearn by Saturday night. I was here to play the first Bonnaroo and it is a very special festival to my band. We are excited to hit the stage again. Get well Ted!

Aloha,
Jack

Bonnaroo 2013 kicked off yesterday (June 13) and runs through Sunday. Click here to watch the fest’s special webcast via Ustream.

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