Glastonbury 2015 is officially underway, as Friday (26 June) marked the first day of music at the annual music festival.
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Florence and the Machine proved to be the stand-out act of day one, taking to the Pyramid Stage for their headline set.
However, there was much more on offer for the thousands of fans down on Worthy Farm, with performances from Motorhead, James Bay, Rudimental, Mark Ronson, Everything Everything, Jamie XX, Mary J Blige, The Charlatans and The Vaccines, among many, many others.
The Libertines were also unveiled as the special guests, taking up the vacant slot on the Pyramid Stage after Florence and the Machine were bumped up the bill to stand in for Foo Fighters, who were forced to cancel their headline set after Dave Grohl broke his leg.
Take a look at all the best pictures from day one of Glastonbury 2015 in our gallery below...
Glastonbury 2015: Day One
Glastonbury Festival 2015 - Day 1(01 of23)
GLASTONBURY, ENGLAND - JUNE 26: Florence Welch of Florence And The Machine performs headlining the Pyramid Stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(02 of23)
GLASTONBURY, ENGLAND - JUNE 26: Florence Welch of Florence And The Machine performs headlining the Pyramid Stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(03 of23)
GLASTONBURY, ENGLAND - JUNE 26: Pete Doherty of The Libertines performs live on the Pyramid stage during the first day of the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Jim Dyson/Getty Images) (credit:Jim Dyson via Getty Images)
Glastonbury Festival 2015 - Day 1(04 of23)
GLASTONBURY, ENGLAND - JUNE 26: Pete Doherty and Carl Barat of the Libertines perform as surprise act on the Pyramid stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(05 of23)
GLASTONBURY, ENGLAND - JUNE 26: James Bay performs live on the Pyramid stage during the first day of the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Jim Dyson/Getty Images) (credit:Jim Dyson via Getty Images)
Glastonbury Festival 2015 - Day 1(06 of23)
GLASTONBURY, ENGLAND - JUNE 26: James Bay performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(07 of23)
GLASTONBURY, ENGLAND - JUNE 26: (L-R) Phil Campbell and Lemmy of Motorhead perform at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(08 of23)
GLASTONBURY, ENGLAND - JUNE 26: Lemmy from Motorhead performs on The Pyramid Stage during the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. Now its 45th year the festival is one largest music festivals in the world and this year features headline acts Florence and the Machine, Kanye West and The Who. The Festival, which Michael Eavis started in 1970 when several hundred hippies paid just ã1, now attracts more than 175,000 people. (Photo by Ian Gavan/Getty Images) (credit:Ian Gavan via Getty Images)
Glastonbury Festival 2015 - Day 1(09 of23)
GLASTONBURY, ENGLAND - JUNE 26: Mark Ronson performs on the Other stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(10 of23)
GLASTONBURY, ENGLAND - JUNE 26: Mark Ronson performs on the Other stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(11 of23)
GLASTONBURY, ENGLAND - JUNE 26: Mary J Blige performs live on the Pyramid stage during the first day of the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Jim Dyson/Getty Images) (credit:Jim Dyson via Getty Images)
Glastonbury Festival 2015 - Day 1(12 of23)
GLASTONBURY, ENGLAND - JUNE 26: Mary J Blige performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(13 of23)
GLASTONBURY, ENGLAND - JUNE 26: Alex Robertshaw and Jonathan Higgs of Everything Everything performs on the Other Stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(14 of23)
GLASTONBURY, ENGLAND - JUNE 26: Jonathan Higgs and Jeremy Pritchard of Everything Everything perform live on the Other stage during the first day of the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Jim Dyson/Getty Images) (credit:Jim Dyson via Getty Images)
Glastonbury Festival 2015 - Day 1(15 of23)
GLASTONBURY, ENGLAND - JUNE 26: (L-R) Martin Blunt and Tim Burgess of The Charlatans performs as special guest on the Other Stage to commence the live on music day 1 at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(16 of23)
GLASTONBURY, ENGLAND - JUNE 26: Van McCann of Catfish And The Bottlemen performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(17 of23)
GLASTONBURY, ENGLAND - JUNE 26: Van McCann of Catfish And The Bottlemen performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(18 of23)
GLASTONBURY, ENGLAND - JUNE 26: (L-R) Rou Reynolds and Chris Batten of Enter Shikari performs on the John Peel stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(19 of23)
GLASTONBURY, ENGLAND - JUNE 26: (L-R) Rou Reynolds and Chris Batten of Enter Shikari performs on the John Peel stage at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Tabatha Fireman/Redferns via Getty Images) (credit:Tabatha Fireman via Getty Images)
Glastonbury Festival 2015 - Day 1(20 of23)
GLASTONBURY, ENGLAND - JUNE 26: Liam Fray of The Courteeners performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(21 of23)
GLASTONBURY, ENGLAND - JUNE 26: Mark Cuppello of The Courteeners performs at the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Shirlaine Forrest/WireImage) (credit:Shirlaine Forrest via Getty Images)
Glastonbury Festival 2015 - Day 1(22 of23)
GLASTONBURY, ENGLAND - JUNE 26: Justin Young of The Vaccines performs on the Other stage during the first day of the Glastonbury Festival at Worthy Farm, Pilton on June 26, 2015 in Glastonbury, England. (Photo by Jim Dyson/Getty Images) (credit:Jim Dyson via Getty Images)
BRITAIN-ENTERTAINMENT-MUSIC-GLASTONBURY(23 of23)
US singer Brittany Howard (C) of Alabama Shakes performs on the Pyramid Stage on the first official date of the Glastonbury Festival of Music and Performing Arts on Worthy Farm near the village of Pilton in Somerset, south west England, on June 26, 2015. AFP PHOTO / OLI SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images) (credit:OLI SCARFF via Getty Images)