Listen to Katy Perry's new single, Chained To The Rhythm

Here it is, starring a hungry hamster, the lyric video for Katy Perry's big comeback: Chained To The Rhythm. Built on a bed of bubbling bass and a muted, 80s piano, it's the very definition of a subtlebanger: More of a groove than a song. The chorus, in particular, sits on the tonic note - giving it a mantra-like quality. But it's stuck in my head after one listen, so that's something. An irresistible earmworm.

The track was produced by Max Martin and written by Sia - which is something of a surprise, since the bewigged Aussie superstar previously said she had clashed with Perry in the studio.

"She's also quite dominant, and she's extremely analytical," Sia told Rolling Stone last year. "I actually quit within the first hour of our first session. I was like, 'Can we be friends if this doesn't work? Like our whole songwriting dynamic?'

"And she was like, 'I love it. It's like a puzzle to me. It's like a crossword.' And I was like, 'But this is boring for me. The analysis is totally boring for me. It feels like the enemy of creativity.'

"It was so cool to be able to have that conversation on why we wrote in such entirely different ways. I'm glad I didn't give up on it because I actually did get a song out of it, and we also really had a laugh because we were able to be authentic."

Maybe this is that song?

Premiered on glitterball jukebox listening posts that Perry distributed around the globe earlier this week, it's now available to stream and download - and she'll give the premiere performance at this Sunday's Grammys.

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