Rolling Stones singer Mick Jagger on stage in Stockholm last month (AP).
Fans of the Eagles and the Rolling Stones were lost in Mt Smart Stadium tickets to the bands' shows have another chance.
Others are adding 6,000 seats to host concerts rock veterans groups.
They are in the top bracket to the south on the other end of the arena from the stage.
Tickets for the seats, which go on sale through Ticketmaster at noon on Thursday, August are $ 165.55 for the Stones show and $ 148.30 for the Eagles.
The Stones are playing a show once at Mount Smart, on 22 November, having postponed their tour of Australasia in March, after the death of the girlfriend of Mick Jagger, fashion designer L'Wren Scott.
The Eagles are playing at the stadium on March 14 and March 15 next year.
The promoter of both shows, managing director Michael Gudinski Frontier Touring said the demand for tickets was unprecedented.
"No more shows started looking at possible options that could increase production capacity, but had thought the numbers would likely be minimal.
"When Auckland Stadiums suggested additional seats were delighted? Being able to accommodate 6,000 fans per show was beyond our wildest imaginations who would have thought the biggest shows of the year could be bigger"
The 6000 additional seats are being purchased by the regional body council facilities for the U-20 World Cup.
A spokesman for Regional Facilities Auckland said that the additional seats are part of a contract between FIFA and QBE (North Harbour Stadium) for the World Cup U-20 Cup in May next year.
The spokesman did not say how the seats would cost, but said it received capital funds for the purchase when the regional facilities assumed QBE Stadium in May this year.
"Regional Facilities is conducting a confidential competitive procurement for the purchase of portable seats and is very pleased with the value that will result.
"With the purchase of the seats, Regional Team for greater cost efficiency and the ability to move the seats around our three-stage network to improve the overall efficiency of events," said the spokesman.