Lorde has been busy working away on her second album, but in the meantime she's been adding her touch to a classic pop track.
The singer was at Jack Antonoff's Ally Coalition Show at Webster Hall in New York to raise money and awareness around homeless LGBTQ youth and LGBTQ equality.
As she's been working with Jack for the best part of this year on the follow-up to Heroine it was only right that she hopped on stage with him to do a song.
So with Jack on the piano and Lorde on the mic they treated the crowd to an acoustic rendition of Robyn's banger 'Hang With Me'.
Related: Lorde has had a breakthrough with her new album - is it finally on the way?
Meanwhile through some sad injustice Calum Scott has had more success in the charts with Robyn's hit 'Somebody Else' than Robyn herself did.
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Chvrches singer Lauren Mayberry was there too to cover Katy Perry's 'Firework' and Charli XCX and Jack Antonoff performed 'Boom Clap'.
Antonoff has been working with some other big names recently, working alongside Taylor Swift and Zayn to make their new collaboration 'I Don't Wanna Live Forever' for the Fifty Shades Darker soundtrack.
"I don't wanna live forever came together very quickly. wrote it with taylor and sam dew and produced it at home mostly on paper sounds [sic]," he explained on Twitter.
"recorded taylor at my house. zayn sent parts from LA - we did it in a week basically. i've never had something come out that quick."
Watch the music video for Robyn's 'Hang With Me' below:
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