John Mayer's Emergency Surgery Forces Dead & Company to Postpone More Shows
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John Mayer is recovering from the emergency appendectomy he underwent on Tuesday after he was rushed to the hospital.

"Still got it," he wrote on Instagram on Wednesday, sharing a pic of himself in a hospital gown.

A rep for the 40-year-old singer tells ET that he is in good spirits, but due to the recovery process, Dead & Company has been forced to postpone three more shows.

Mayer was scheduled to perform with the band, which consists of former Grateful Dead members Bob Weir, Mickey Hart and Bill Kreutzmann, along with Oteil Burbridge and Jeff Chimenti, multiple times this month. They postponed Tuesday's show in New Orleans for a later date. Additionally, the concerts scheduled for Dec. 7 at the Amway Center in Orlando, Florida, and Dec. 8 at the BB&T Center in Sunrise, Florida, are postponed.

The rep tells ET that all tickets for these shows will be honored for the rescheduled dates. Information on the rescheduled concerts will be announced as soon as possible. Should ticket holders choose to seek a refund, they will be available at the point of purchase.

As ET previously reported, no word yet on whether Mayer will be able to join them for the rest of the tour, which wraps Feb. 18 in Riviera Maya, Mexico.