The 22-year-old pop star will take to the Pyramid stage at the annual Worthy Farm weekend festival on Sunday June 29, while the rock band will headline on the Friday.
Meanwhile Charli XCX, who recently won five BRIT Awards at the annual music ceremony, will take to the stage on the second day and top the bill on the second stage on the Saturday.
Alanis Morissette, Noah Kahan, Gracie Abrams, Lola Young and US rap star Doechi, will all make their debuts at the prestigious events, while acts such as Wolf Alice, Wet Leg, Fatboy Slim, Loyle Carner and Scissor Sisters will all make a comeback.
Neil Young was previously announced as headlining the Saturday night, while Rod Stewart will hone the coveted legends slot, previously taken by the likes of Diana Ross, Kylie Minogue and Elton John.
In a message alongside a poster of the billing, Glastonbury organisers wrote on Instagram: "Here is the first Glastonbury Festival 2025 line-up poster. Many more acts and attractions still to be announced."
In 2022, Good 4 U hitmaker Olivia was joined at the festival by Lily Allen where they performed a rendition of the politically-charged track F*** You on the Other stage.
The 1975 - which consists of Matty Healy, Adam Hann, Ross MacDonald, and George Daniel - first performed at Glastonbury in 2014 and returned again in 2016.
It was recently confirmed that once the 2025 festival has finished, it will not return in 2026 in order to give the land "a rest".
Organiser Emily Eavis, whose farmer father Michael started the festival in 1970, told The Sun: "(It will) give the land a rest. The festival before a fallow year is always a fun one to plan, because you almost have to fit two years into one.
"We're already in talks with some acts for it. It's exciting!"
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