Elton John says he's "incredibly disappointed" to have to reschedule his Auckland concerts planned for this week until 2021.

Photo: Supplied / Cassie Roma

On Sunday, the performer cut short a show due to walking pneumonia and rescheduled a Tuesday concert to Wednesday.

Late on Tuesday evening, a statement from his promoter was released saying: "Despite the best efforts of a performer who never wants to disappoint his fans, upon further consultation from doctors and specialists, it has today been decided that Sir Elton John's two remaining Mt Smart Stadium, Auckland, performances will be rescheduled to Friday 15th and Saturday 16th January 2021."

John was quoted as saying: "I'm incredibly disappointed to have to reschedule my remaining Auckland dates and I want to send my sincerest apologies to my amazing fans for any inconvenience caused.

"I always want to be able to give one hundred percent and I'm afraid that, right now, I'm not able to do that. I am grateful for the love and loyalty I have been shown by all of you and I can't wait to return in January next year to perform my final New Zealand shows."

Because the rest of 2020 was filled with dates for his Farewell Yellow Brick Road tour, the earliest he could return was January 2021, the statement said.

Tickets for Elton's Wednesday 19th (previously Tuesday 18th) February concert will be valid for Friday 15 January 2021.

Tickets for the Thursday 20 February show will be valid for Saturday 16 January 2021.

People were advised that if they were unable to attend the rescheduled 2021 shows, they should contact Ticketmaster to request a refund.