Rina Sawayama makes guest appearance with Elton John at Glastonbury after calling out Matty Healy

Elton John’s retirement tour is wrapping up soon. He just completed ten shows at the O2 in London and headlined at Glastonbury this weekend which marked his final performance in the UK. Ahead of the show there was all kinds of speculation about who’d join him on stage – yesterday Britney Spears was ...