“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,” promoter Harvey Goldsmith said in a statement after the ahmettribute.com site received 5 million hits per hour in the first 24 hours of its launch.

Goldsmith said the service provider did its best to keep the site going and has since moved it to a server of its own.In a 12-hour period during September 13 there were 89.5 million attempts to register at the site.

The November 26, £125 per ticket show is a tribute to Atlantic Records founder Ahmet Ertegun, who died last year aged 83, and a fundraiser for his Ahmet Ertegun Education Fund, which provides students with annual scholarships to universities in the U.K., U.S. and Turkey.

“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,” Goldsmith told the fans.

Successful applicants will be chosen at random and limited to a pair of tickets per household.

Also on the bill are other U.K. artists who Ertegun guided, including Pete Townshend, Bill Wyman, Foreigner and Paolo Nutini.

Led Zeppelin formed in 1968, and quickly became colossal rock icons, setting new records along the way for fan attendance at the band’s massive gigs.

The act disbanded after drummer John Bonham’s death in 1980, although they reunited for the 1985 Live Aid concert.

The band sold more than 300 million albums worldwide and in 1995 was inducted into the Rock and Roll Hall of Fame, joining their mentor Ahmet Ertegun.