The US star arrived early on stage, after hitting the headlines last year for delayed performances.

The singer is set to return to Glastonbury at Worthy Farm in Somerset on June 25th

Sia and Maddie Ziegler also joined Labrinth during his surprise-filled set

The 20 year-old singer’s romantic links with the Neighbourhood frontman, 31, have faced some criticism online over the age difference between them.

The Coachella and Stagecoach music festivals have been rescheduled to 2021 after this year’s events were cancelled due to coronavirus, organisers have said.