Glastonbury, UK - New Zealand singer Lorde helped kick off this year's Glastonbury music festival in southwest England on Friday with a packed-out "secret set."

Best known for hits including Royals, Green Light, and Solar Power, the star's performance on the Woodsies stage coincided with the release of her much-anticipated fourth studio album, which came out at midnight.

Organizers shut off Woodsies field just before Lorde came on stage due to overcrowding as news of her appearance spread around the festival's sprawling Worthy Farm site.

Headline acts for this year include Neil Young and Olivia Rodrigo, with other highlights including Charli XCX, Rod Stewart, and The 1975.

Katy Perry Katy Perry and Orlando Bloom call it quits in bombshell split!

Kim Kardashian Man convicted of robbing Kim Kardashian dies after high-profile Paris trial

Olivia – who brought huge crowds to New York City's Governors Ball music festival earlier this month – will take to the stage on Sunday.

This marks the pop star's first-ever time headlining Glastonbury, but her second time there after a performance in 2022.

Scottish singer-songwriter Lewis Capaldi, meanwhile, was rumored to be another of the TBAs who might perform a "secret set" at this year's festival.

Capaldi wrote on Instagram, "It's been a while..." as his new track Survive was released, marking his return to the music industry.