Reading and Leeds Festival 2015 is officially go! Across two sites, there are hundreds of bands playing. Catch the live action as it happens. Highlights from day one at Richfield Avenue and Bramham Park include Drenge, Alt-J, Kendrick Lamar, Jamie T plus headliners The Libertines and Mumford & Sons. Keep coming back for the latest.
Boy Better Know closed the BBC Radio 1 Dance Stage at Leeds Festival on the Friday night.
Frank Turner saw the Festival Republic stage out in style for his Friday night show at Leeds Festival.
Seminal Swedish hardcore punks The Refused, who formed in 1991, tore open The Pit Stage on the Friday night at Bramham Park.
Never ones to scrimp on their visual aesthetic, Mini Mansions were accompanied by a colourful light show for their Leeds Festival performance on the Festival Republic stage.
Knife Party packed out the NME/Radio 1 stage at Reading for their Friday night closing set.
Django Django look as psychedelic as they sound on the Festival Republic Stage at Reading.
Django Django frontman Vinny Neff is dressed to impress...
Deadmau5 pulled off a thrilling live extravaganza as he closed the NME/BBC Radio 1 stage at Leeds Festival on the Friday night.
Red is the colour of choice for Scottish electronic wizard Hudson Mohawke whose rapid rise to notoriety is marked by his penultimate set closing the BBC Radio 1 Dance Stage at Leeds Festival on the Friday night.
Play that double bass like you mean it Ted...
Marcus Mumford doesn't disappoint for the band's Friday night headline set on the Main Stage at Richfield Avenue.
Mumford and Sons close the Main Stage at Reading.
Limp Bizkit's Fred Durst treated the crowd to two quite disparate covers during their Friday night set on Reading's NME/Radio 1 stage - 'Faith' by George Michael and 'Killing in the Name' by Rage Against The Machine.
The boys in the band...
The Libertines slayed the Main Stage at Leeds Festival on Friday night.
Alt-J unleash a dazzling light show for the Friday night crowds on Richfield Avenue's Main Stage.
Mercury-prize winners Alt-J take to their Main Stage perch with ease.
Reach for the stars...
Poker-hot hip-hop duo Rae Sremmurd proved their worth on the BBC Radio 1Xtra Stage at Reading.
Alvvays frontwoman Molly Rankin sung her heart out.
Alvvays having a laugh on the Festival Republic Stage at Reading Festival.
It's legs akimbo for Bronx frontman Matt Caughthran.
Mariachi El Bronx opened the Main Stage at Reading Festival on Friday.
The crowd go bonkers for Peace's second set of the day at Richfield Park.
Peace's Harry Koisser had an art attack on the NME/Radio 1 stage. "It's the first time I've worn wet paint - you're literally watching paint dry," he said.
Hyped new Domino signing GEoRGiA rounds off the BBC Introducing Stage on Friday at Reading.
Kendrick Lamar: from Compton to Bramham Park.
Someone's excited about Kendrick Lamar...
Years & Years fired up the crowd during their appearance on the NME/Radio 1 stage.
Run The Jewels getting touchy feely on the NME/ Radio One stage at Reading.
Jamie XX bringing recent LP 'Colours' to a ravenous Leeds festival.
Reading festival punters revelling in the afternoon's musical treats.
Bastille storm the Main Stage at Reading Festival.
Dan Smith and his band played a handful of new tracks.
Spring King, one of our top tips for the weekend, certainly didn't prove us wrong as they tore up the Festival Republic Stage at Bramham Park.
Tropical indie newcomers Hippo Campus share a private joke on the Festival Republic stage at Leeds Festival.
Jamie T looking every inch the rock star for his animated Main Stage set at Bramham Park on the Friday.
A terrifying Frank Carter looks like he's about to burst a blood vessel during his Friday early evening show on the Pit Stage at Leeds Festival.
Frank Carter gives his fans an intimate performance.
Gengahr make a triumphant return to Bramham Park on the Friday evening.
Swim Deep frontman Austin Williams takes the weight off his feet during the band's Friday evening set on the NME/Radio 1 Stage at Richfield Avenue.
Austin of Swim Deep is captured in a moment of pure axe-wielding glee.
Dave Bayley of Oxford's Glass Animals looks like he's about to break down in tears on the NME/Radio 1 stage at Bramham Park.
Kwabs, who just released his debut album 'Love + War', looks like he's doing 'the YMCA' on the NME/Radio 1 stage at Leeds Festival.
All Time Low frontman Alex Gaskarth does 'a Miley' for the camera as he treats his fans to an intimate performance during the band's Main Stage set at Richfield Avenue.
All time Low lead guitarist and backing vocalist Jack Barakat screams his lungs out.
The Maccabees know what they're doing when it comes to R&L. This was their biggest ever slot at the festival.
Earlier in the month they scored their first UK number one album with 'Marks To Prove it'.
A Palma Violets fan shows his affection for the hard-living Londoners and another one gives himself a DIY shower during the band's packed-out Friday afternoon set at Richfield Avenue.
Suits you, sir! Palma Violets look the part for their stellar performance.
Palma Violets' Chilli teeters close to the edge...
Hey Scenesters! The Cribs tore through a homecoming set on the Main Stage at Leeds Festival - Ross is clearly too cool for drum stools.
Don't drop it Ryan! The Cribs' frontman raises a pint to the crowd.
Peace played a surprise Friday afternoon set on the BBC Introducing Stage at Reading Festival, treating their fans to four tracks in total, including 'Delicious (1998)', which they revealed they won't be performing later on.
The Friday crowds at Reading Festival soak up the sunshine but are the heavens about to open?
Emo legends American Football confirm their love of all things plaid for their Friday afternoon performance on the NME/Radio 1 stage at Reading Festival.
Drenge pop down the front to catch some music on the Friday afternoon at Reading Festival.
New York hip-hop trio Ratking bring the beats and rhymes to Leeds Festival on Friday afternoon.
They Will Reign! New York rockers The Last Internationale storm the Festival Republic stage at Leeds Festival on the Friday afternoon with their hair-dos still in tact.
Berkshire teens Sundara Karma could be the hair apparent to Springsteen's anthemic rock 'n' roll throne with a rousing performance at Leeds Festival on Friday afternoon.
Twisting My Melon Man - Jake Smallwood of the Paul Weller-endorsed Brighton band White Room does the 'Baggy' dance.
The Gaslight Anthem were on fine form in Leeds, performing after Against Me! and before The Cribs.
In 2014, when the duo played on the NME/Radio 1 stage they both wore dresses. More conventional attire this time out from the Loveless brothers.
Drenge drew a huge crowd on the Main Stage early on Friday at Reading.
Ghostpoet looks pensive at Leeds Festival as the crowd go wild.
Moscow-born polymath du jour, Shura, entertained the lunchtime crowds on the NME/Radio 1 stage at Reading.
Kent hardcore band Feed The Rhino open up the Main Stage at Leeds Festival with topless crowdsurfing and foot-grabbing galore.
Frontman Matt Caughthran, on cheeky form, praised the sunshine and joked about the rain as the LA band kicked off the first day of music.
Mariachi El Bronx pulled out all the stops for their opening set at Reading Festival, which featured a brass section and string player.