John Mayer Undergoes Emergency Surgery

Singer-songwriter John Mayer had an emergency appendectomy on Tuesday, forcing him to cancel at least one concert.

According to his rep, Mayer was hospitalized early in the day.

The 40-year-old, who is touring with Dead and Company, scrapped a Tuesday night show in New Orleans. They have only two shows left in the tour, scheduled for Thursday and Friday in Florida.

Mayer and Dead and Company are then set to do a series of shows in Mexico in mid-February.

Recovery from an appendectomy varies from one to four weeks.