Reportedly, Brian May, guitar player of British legend Queen, said that the band would be interested in headlining Glastonbury in the future, but only if Adam Lambert was available to perform alongside them.
Speaking at the Ivor Novello Awards 2015, which took place at the Grosvenor House Hotel in London on May 21, May told "Bang Showbiz" that while the band "probably" won't be appearing at Glastonbury this year, they wouldn't turn down the opportunity to perform at the festival someday:
Look these things get put on the table, it would be interesting to do Glastonbury if we were an operational unit at the time," he said. "You see this year Adam's off doing his solo work at the moment so it wouldn't have worked. You only look at things that are possible logistically at the time.
In the mentime, Lambert is about to relese his solo album "The Original High", where May will appear on the track "Lucy".