Dead & Company postponed their show Tuesday night in New Orleans after band member John Mayer was hospitalized for an emergency appendectomy.

“Early this morning, Tuesday, December 5th, John Mayer was admitted into the hospital for emergency appendectomy forcing the Dead & Company December 5th concert in New Orleans to be postponed,” said a tweet from the band’s Twitter account.

Dead & Company was formed in 2015, and along with Mayer, includes former Grateful Dead members Bob Weir, Mickey Hart, and Bill Kreutzmann. His band-mates were quick to wish him well on social media.

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https://www.instagram.com/p/BcVPTAeAWEJ/?taken-by=billkreutzmann

Mayer, 40, has been touring with the Grateful Dead offshoot since last month. The last two stops on the tour are later this week, December 7 & 8 in Florida, but no news has been given about whether Mayer will be well enough to perform. The guitarist also has a number of upcoming solo dates scheduled to promote his seventh album, The Search for Everything, released earlier this year.

A representative for John Mayer confirmed to CNN that he is out of surgery and recovering.

Update: Dead & Company’s shows on December 7 in Orlando and December 8 in Sunrise have also been postponed while Mayer recovers.