Ticket demand for the one-off Led Zeppelin show taking place in November at the 02 Arena, has caused organisers to extend the registration period for fans applying for tickets.

An unprecedented 80,000 fans a minute have been attempting to access the www.ahmettribute.com site since the announcement was made on Wednesday afternoon (September 12). Due to the expected high demand, fans have to register for a ballot in order to get hold of the £125 tickets.

Yesterday alone (September 13) there were 89.5 million attempts to access the registration site in a 12 hour period, as fans constantly re-entered the address hoping to get through.

The website has now been moved to its own server and is running more smoothly.

The Tribute To Ahmet Ertegun show is due to take place on November 26, and will also feature other UK artists guided in their careers by Ahmet Ertegun, the founder of Atlantic Records who died last year.

As prevoiusly reported, Robert Plant, Jimmy Page and John Paul Jones will be joined by Jason Bonham, the son of their late drummer John Bonham for the show. It will be their first full performance as a band for 27 years.

Pete Townshend, Bill Wyman and the Rhythm Kings, Foreigner and Paolo Nutini will also all perform on the night.

A message from the concert’s promoter Harvey Goldsmith reads: ” We urge people to be patient and to remember this is a ballot system and that all registrations will have equal standing regardless if they register first or last.”

He adds: “To the thousands of fans that have already registered, we thank you for your support of the Tribute To Ahmet Ertegun concert and we continue to do our best to ensure that tickets for this show go directly to you and don’t end up in the hands of the unscrupulous touts.”

Go to www.ahmettribute.com to register for Led Zeppellin tickets. Limited to one pair per household. All duplicate applications will be cancelled.

Successful applicants will be informed from October 1.