Zara Larsson has teamed up with Charli XCX for her new album.

Zara Larsson

Zara Larsson

The 20-year-old singer has joined forces with the 'Boom Clap' hitmaker for her forthcoming record, a follow up to 2017's 'So Good', and Charli loved trying out new ideas with the Swedish songstress.

She said: "Someone who has been really fun to work with recently was Zara Larsson.

"We were working just for her stuff, trying ideas. She's just so cool.

"She's a really funny person and clever. I really liked being in the studio with her."

Charli has also been busy working with Troye Sivan on her latest song '1999', and admitted he convinced her to keep the track because he was so keen to appear on the song.

She added to The Sun newspaper: "When he was like, 'I really want to do this song', I was like, 'OK I have to keep it because if Troye loves it then I'm feeling it.'

"He sold it to me."

Charli and Troye teased their new single earlier this week by posting the song's official artwork - a picture of the pair dressed up as characters from 'The Matrix', in black floor-length leather and PVC coats and black sunglasses.

She wrote on Twitter: "Hey Troye....... @troyesivan (sic)"

He replied: "mmmmhmmm Charli? (sic)"

Charli shared: "Do you wanna go back????? (sic)"

Troye wrote"Back where!!!??? (sic)"

Charli then broke the news of her single, writing: " 1999!!!!!!!!!!!!!!!!! (sic)"

She posted: "1999 OUT THIS FRIDAY - BY UR FAV POP LEGENDS @TROYESIVAN AND MEEEEE!!!!!!!!!!!!! pic by @jacobbixdesign by @tmthy.luke (sic)"

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