The Who make 1970s ticket offer
Fans with tickets for a cancelled 1979 concert by The Who in Rhode Island, USA, will be able to use them when the band return to the venue next year.
The gig by the band in Providence, Rhode Island, was called off 33 years ago after a stampede killed 11 people before a previous show in Ohio.
Fans with tickets for the Providence show can swap them for February's gig.
"Somewhere, someplace, someone's got it stashed," Lawrence Lepore, manager of the Dunkin' Donuts Center venue, said.
"The question is, are they willing to give that up? If they are, we're willing to take it," he told the Associated Press news agency.
The legendary rock group were due to play at the venue, formerly named the Providence Civic Center, in 1979. But the city's mayor called the show off, citing safety concerns after the tragic events in Cincinnati, Ohio.
The band will close their next US tour, during which they will play their 1973 album Quadrophenia in its entirety, in Providence on 26 February.