U2 run through a drizzly headline set on the Pyramid Stage on Friday night.
Bono looking, erm, resplendent in a leather jacket and trousers during their Friday night Pyramid Stage headline set.
You can watch a video interview with U2's The Edge here. He says of Glasto: "It's more a way of life than a festival" and describes the keyed-up Pyramid Stage crowd as "the world's greatest festival audience".
Art Uncut stage a protest during U2's set, as campaigners revolted against the band's 'tax exile' status. You can see the 20-foot wide balloon, on which they wrote "U Pay Your Tax 2".
This year marks U2's first ever Glastonbury appearance. The Irish band were due to headline the Pyramid Stage in 2010, but cancelled and were replaced by Gorillaz after frontman Bono injured his back.
U2 kick off their Glasto set with five songs in a row from their 1991 album 'Achtung Baby', flanked by huge video screens showing references to the band's 'Zoo TV' tour of the period.
Bono mentions the non-event of last year, saying before 'I Still Haven't Found What I'm Looking For': "Sorry for calling in sick last time." He had earlier said to the audience, "It might be the leylines, but there's a very special feeling about tonight."
During U2's set, Bono sings a snippet of the William Blake poem 'Jerusalem' before 'Where The Streets Have No Name'. He also pays tribute to fellow Glastonbury headliners Beyonce, Coldplay and Primal Scream by singing snippets of their songs 'Independent Women', 'Yellow' and 'Movin' On Up' respectively.
Bobby Gillespie’s gang Primal Scream bring their classic album ’Screamadelica’ to the festival on the Other Stage.
People have a tough decision to make - Primal Scream or U2? The two bands share a time slot at Glasto 2011. We asked some bands which acts they planned to catch - click here to find out what they said.
Looks like Alice Glass of Crystal Castles is finally off the crutches. The band perform on The Park stage on Friday night.
Cee Lo Green performs at West Holts on Friday night, telling the crowd, "I spent a lot of money on these shoulder pads, do you like them?" Click here to read our review of his set.
The rumours are true. Radiohead's not-so-secret show happens on The Park stage. Click here to check out our verdict on the band's performance.
Mumford & Sons play one of the biggest shows of their career so far on the Other Stage on Friday night. Singer Marcus Mumford told NME that the band were "shit scared" about their performance, despite having played the festival before.
Warpaint play on The Park stage on Friday.
Cage The Elephant rock out on the John Peel Stage.
Caribou drops some late-night beats on The Park stage on Friday.
Jamie xx takes some time away from his band for his own solo set at Oxlyers In West on Friday.
Morrissey mocks U2 during his set on the Pyramid Stage, sarcastically declaring: "I'll sing as fast as I can, I know you're all waiting for U2."
Biffy Clyro play their first Pyramid Stage show at Glastonbury, giving a stern warning to the weather. "Fuck the rain... with a big fat cock," says frontman Simon Neil before an acoustic version of 'Machines'.
Before the show bassist James Johnston told NME: "We've played here a few times now, but never on the Pyramid Stage, so now we're just panicking over what's going to work and what's not going to work," he said. "It's all kicking off when we take our tops off... we're basically a rock band and we're really proud to bring a rock show to Glastonbury."
An aerial shot of the festival site at Worthy Farm on Friday.
Biffy Clyro's Simon Neil sings the intro to Sunday night headliner Beyonce's 'Crazy In Love' during his band's 14-song set.
Click here to read our review of Fleet Foxes' set on the Other Stage.
Not all the banners for U2 are negative at Glasto - looks like someone's got a crush on The Edge.
Gig-goers watch Two Door Cinema Club perform at Glastonbury Festival 2011.
The 'King Of Blues', BB King, performs on the Pyramid Stage on Friday.
We hope these tourbuses don't have to move any time soon.
Elbow's Guy Garvey enjoys some relaxation time backstage.
No festival is complete without some Oompa Loompas.
Another loving sign for U2 is spotted in the crowd.
The Edge's guitar tech checks the musician's instruments before U2 take to the stage.
Biffy Clyro joke around backstage before their big performance.
A few Glasto-goers enjoy the first full day of the festival.
Winston Marshall of Mumford & Sons looks angry with NME's photographer. We hope they made up afterwards.
Click here to check out our review of The Vaccines playing on the Other Stage.
Jo Whiley is spotted in some bright pink wellies at Glastonbury Festival 2011.
There are quite a few stag dos going on at Glasto 2011.
Wu-Tang Clan pose for the cameras during their Pyramid Stage performance.
Well, these look nice and cosy...
Wu-Tang Clan gave a shout out to their late bandmember, rapper Ol' Dirty Bastard - represented onstage by his son, Young Dirty Bastard.
Wu-Tang Clan's Method Man moaned to the crowd about his entry to the UK, claiming customs officials had treated the band "like the Taliban".
Dubstep songstress Katy B performs at Glastonbury Festival 2011.
The Wombats perform on the Other Stage. We're pretty sure a guitar isn't an ideal umbrella, though...
Murph and his Wombats play on the Other Stage.
An aerial shot of the Glastonbury Festival 2011 site on Friday.
Metronomy perform on the Pyramid Stage.
Footy player Wayne Rooney and his wife Coleen Rooney are caught backstage at Glasto 2011.
Metronomy help kick off Glasto 2011 as they play on the Pyramid Stage on Friday.
Face-paint and balloons - two festival essentials.
Brother perform on the Other Stage on Friday. If you missed it, the band gave Rastamouse some Glasto advide. What was theirs? "Hide your drugs!"
A shot of the crowd on Friday at Glastonbury Festival 2011.
During his Friday slot on the John Peel Stage, Miles Kane compared opening for Arctic Monkeys and for Beady Eye: “It was different. The Monkeys was a bit more like a festival vibe. It was brilliant of Liam [Gallagher] and that to take us out, but that was a bit more respectful.”
A bird's-eye view of the muddy mess that is Glastonbury Festival.
During their set on the Pyramid Stage, Two Door Cinema Club played a new song called ‘Sleep Alone’.
We wonder what was happening onstage - the guy at the front looks terrified.
Two Door Cinema Club perform on the Pyramid Stage on Friday.
Good move: bringing his own cider. Bad move: wearing that ridiculously hideous mask.
We really hope this guy didn't flash the camera for the big screen.
A few Glasto-goers embrace the sunshine.
Gotta hand it to the Eavis clan - they know how to be creative with their signs.
Note to punters: don't fall asleep on the grass, or this will happen to you.
NME's favourite New Zealanders The Naked And Famous play on the Other Stage on Friday afternoon.
Noah & The Whale's Charlie Fink looks quite dashing backstage on Friday. His band are performing on Saturday night on the John Peel Stage.
For all the latest news, photos and reviews from Glasto, visit nme.com/festivals/glastonbury.
A few more punters enjoying the music of Glasto '11.
A colourful bird's-eye view of the campsite at Glastonbury Festival 2011.
We catch up with Professor Green at Glasto on Friday.
Well, we don't really see any grass any more...
Looks like this guy's got the biggest head at Glasto - despite the site being filled to the brim with celebs.
Two Door Cinema Club hang out backstage before performing on the Pyramid Stage on Friday afternoon.
Glasto-goers enjoy the first full day of live music on Friday.
There's not a cow in sight on the dairy farm right now.
Lily Allen's supposedly celebrating her honeymoon at Glasto. These guys decided to spend their stag-do weekend at the fest. Maybe someone will get married there, too!
The tents are pitched. The clothes are muddy. The sun is out (for now). Glasto 2011 is here, and it's time for the live music to start.
Sufi trance musicians the Master Musicians Of Joujouka play on the Pyramid Stage on Friday morning. The band are most famously known for their links to Rolling Stones founder Brian Jones.
In case you missed the news, Radiohead have been confirmed to perform a special, not-so-secret-any-more set on Friday night on The Park stage.
Radiohead might not be the only surprise, though. There are loads more possibilities floating around the rumour mill, including appearances from Destiny's Child and Prince.
When the sun comes out, so do the bees.
The toilets might be visibly marked, but it can't be easy walking across that sea of tents to get to them.
Someone tell this girl there won't be that much rain this weekend.
We wonder how many pats on the back these guys have received so far.
Good luck washing all that body paint off, folks.
Once a year, cows are swapped for tents and flags at Worthy Farm.
Ever wanted the perfect fairy costume? Visit fairylove.com for it, apparently. Huge picture frame to carry around is optional.
it's only been about a day since gates opened, but rubbish is already everywhere. Good thing the farm is taking next summer off to recover.
Um, we're not quite sure what's going on here. We're sure it was fun to watch, though...
Does that man know he's got about a dozen people living inside his dress?
Glastonbury Festival is never short of entertainment - both on and off the stages. Gallery: Glastonbury - backstage bands and blaggers 2011