Scottish festival T In The Park celebrated its twentieth anniversary this weekend with three days of mud, music and mayhem.
The LA sisters played songs from their 'Forever' EP and their as-yet-unreleased debut album.
After their set, youngest sister Alana took to Twitter to ponder the presumably rhetorical question: "T IN THE PARK Y U SO AMAZEBALLZ?"
The band are on a run of successful festival shows that has also included multiple shows at Glastonbury.
The show concluded with a riotous drum finale.
While previous years have been blighted by rain, this weekend's event enjoyed scorching heat.
Kendrick Lamar had some big shoes to fill on the Main Stage, following The Proclaimers on after they'd walked 500 miles.
Kendrick Lamar won over the crowd with hits from last year's critically-acclaimed 'good kid, m.A.A.d city'.
Jake Bugg cracked a rare smile while playing the Radio One stage.
Bugg closed his set with his biggest hit to date, 'Lightning Bolt'.
At least some of the traditions of 'Braveheart' are alive and well in Scotland.
Coachella headliners Phoenix brought their exuberant set to King Tut's Wah Wah Tent.
The German electronic pioneers were backed by a 3D visual show, which meant...
...handing out 3D glasses to punters, which went well with their lovely summer dresses.
Meanwhile, over on the Main Stage, Mumford & Sons were proving their impressive turn at Glastonbury was no one-off.
The band were joined at one point by a bagpiper who played 'Flower Of Scotland' for the crowd.
X Factor winner James Arthur opened the Main Stage on Saturday.
Chilli from Palma Violets gets things going in King Tut's Wah Wah Tent.
The Palmas blasted through a set packed with tunes from their debut album '180'.
The band have honed their performance during a relentless string of live dates this year.
The T In The Park site makes the most of its location in Balado, Kinross-shire, Scotland.
Miles Kane was as snappily dressed as ever in the King Tut's Wah Wah Tent.
Kane tore through hits from most recent album 'Don't Forget Who You Are'.
Snoop Dogg mistakenly thanked "Glasgow" at the end of his Main Stage set.
It remained warm enough for shorts on Saturday afternoon.
Noah & The Whale were sharp-suited on Saturday on the Radio One stage.
Charlie Fink led the band through a string of hits.
Dizzee Rascal got the crowd bouncing at the Radio One stage.
Up-and-comers Baby Strange played the BBC Introducing Stage.
The Glaswegian trio feature Johnny Madden on vocals and guitar and brothers Aidan and Connaire McCann on bass and drums.
Back on the Radio One stage, Dizzee was getting 'Bonkers'.
On Saturday night, fans had to choose between headliners including Rihanna and Beady Eye.
Beady Eye played a set comprising of tracks from their debut record, new album 'BE' and two Oasis favourites. Walking on stage with two fingers in the air, Liam Gallagher said "who are we?" as the band fired straight into 'Flick Of The Finger'.
Rihanna, pictured here either struggling to hear the crowd or just teasing them to make them scream louder, who can say?
Rihanna must have been absolutely mortified when she realised she'd completely forgotten to wear any trousers, like some sort of bad dream.
The 1975 played mid-afternoon on Sunday in King Tut's Wah Wah Tent.
In memory of the July Revolution of 1830 which toppled Charles X of France, the crowd at T staged a remarkably accurate recreation of Eugène Delacroix's 'La Liberté guidant le peuple'.
Back in King Tut's, Disclosure played a banger-filled set which included a guest appearance from Aluna on 'White Noise'.
Why choose one instrument when you can play them all?
Also in King Tut's, Hurts brought their monochromatic wardrobe to T.
Continuing the more guitar-based, heavier live sound of their recent gigs, singer Theo Hutchcraft was energetic from the off, smashing the mic stand over his knee during 'Evelyn' and moving around the stage throughout. Closing with old singles 'Better Than Love' and 'Stay', the singer then briefly jumped down into the pit to greet the crowd before returning for a final bow.