Britney Spears fans have reacted to the singer’s rumoured guest slot with Elton John at Glastonbury 2023 not materialising.Ahead of Elton’s closing set at the 2023 festival last night (June 25), rumours had been swirling about a guest appearance, which would have been Britney’s first in five years and since her controversial conservatorship ended. The pair released a new version of ‘Tiny Dancer’ together last summer.Though John was confirmed to be joined by four special guests at his headline slot at Glastonbury, none of those ended up being Britney.