Peter Andre has been discharged from hospital after an emergency operation.
The singer and reality TV star had to postpone two gigs over the weekend after being taken to hospital "in excruciating pain".
He was due to play the Plymouth Pavilions on Friday night and Butlins in Minehead on Saturday, but was forced to disappoint his fans.
"All other tour dates will be unaffected and will run to schedule," a statement on his website said.
"Peter would like to thank everyone for their support and their messages...
"We apologise to all of Peter's fans and appreciate their support and understanding."
Andre's manager Claire Powell said the singer had been "terribly disappointed" that he was unable to perform at Friday's sold-out opening night after being "rushed to hospital in excruciating pain".
The Plymouth Pavilions gig was rescheduled to December 21.
Peter is best known for his marriage to glamour girl Katie Price, which ended last year.
The pair tied the knot after romance blossomed in front of viewers on ITV reality television show I'm A Celebrity... Get Me Out Of Here!