KATY PERRY RELEASES MUSIC VIDEO FOR "CHAINED TO THE RHYTHM"
Set in a futuristic theme park, it finds the star seduced by the delights and distractions of modern life. Then slowly she begins to realise something is terribly wrong with the (American) dream. Adhering to Katy's new mantra of "purposeful pop", it's political without being polemic. There are some of the key moments from the video, which you can watch in full on YouTube.
The futuristic theme park (actually Six Flags Magic Mountain in Valencia, California) is a metaphor for the infinite distractions of modern society - but in case that was too subtle, it has been renamed "Oblivia".
The guests are dressed in vibrant 1950s clothes, an era of great optimism for America. As they enter the park, they're all taking selfies, eating giant sticks of candy floss (in the shape of mushroom clouds?) and crowding round an advert for "the greatest ride in the universe".
Everywhere you look, there are signs, icons and statues of a hamster. This will be important later.
The song's lyrics depict a world of repetition and ignorance, where technology renders us oblivious to people's real problems.
"Are we crazy? / Living our lives through a lens / Trapped in our white picket fence / Like ornaments / So comfortable, we're living in a bubble, bubble / So comfortable, we cannot see the trouble, trouble".
At first, Katy is awestruck, just like the other guests. But when she pricks her finger on a rose, there's a hint of trouble in paradise.
As Katy loops the loop, we see another ride, which hoists tiny suburban houses towards the sky.
Suddenly, it malfunctions, and the houses plummet to the ground. A metaphor, perhaps, for the US housing crisis, where reckless lending left thousands of people homeless.
Meanwhile, hundreds of people are joyfully queuing for that hamster ride...
The "greatest ride in the universe" turns out to be a treadmill. The guests aren't there to have fun - they're assets. Cogs in the machine. Literally hamsters on a wheel.
The next scene takes place at a petrol station, where Katy is whisked off her feet by men in sailor costumes.
The pumps are supplying "inferno water" - a reference to the West's dependency on oil, but also to the looming crisis over the world's water supply, which some experts believe could lead to a war in Asia.
As she sits down to watch a 3D movie, Katy notices a disturbing homogeneity amongst her fellow park guests who are, by now moving entirely in unison.
Her feelings are amplified by Skip Marley's guest verse - already the song's most stringently political moment - as he raps: "Break down the walls to connect, inspire / Up in your high place, liars / Time is ticking for the empire / And we're about to riot / they woke up, they woke up the lions."
As Skip reaches out to her, Katy's conversion is complete.
She sings a panic-stricken final chorus, the lyric "stumbling around like a wasted zombie" writ large, with Katy trapped in the middle of a mindless dance routine.
In the closing scene, she turns to make eye contact with the camera, tacitly issuing a challenge to us, the viewer.
Are we comfortable with unquestioning conformity? Or will we join her big pop revolution?