Robyn Secretly Does Retro Synthpop Song for New Film

Joseph Okpako/Redferns via Getty Images
 Robyn performs on stage at Electric Brixton on Jan. 16, 2015 in London, United Kingdom. 

If you glance at the credits for the new indie film Partisan, you’d never know there was a Robyn track lurking. But the new thriller starring Vincent Cassel and Jeremy Chabriel contains a song called “The Hardest Thing,” which features the Swedish pop favorite singing under the guise of Tony Primo and Nixxie.

Turns out, Nixxie is Robyn and Tony Primo is Joseph Mount, from the electronic band Metronomy. The pair duet on the new song, which presents itself like an early '80s synthpop track, right down to the karaoke-bar-styled video above. Robyn comes in during the second half of the first verse on her own, before her vocals become a back-and-forth duet with Mount. 

Robyn Premieres 'Love Is Free' From Her Latest Project: Listen

Partisan premiered at the 2015 Sundance Film Festival and hits theaters on Oct. 2. Its soundtrack also features Pulp’s Jarvis Cocker and All Seeing I’s Jason Buckle under the alias Spanna N the Werx and Sebastian Tellier working as Albert Mondo. 

As for Robyn, she hasn’t released a “proper” solo album since the Body Talk series in 2010, though she released a collaborative EP with La Bagatelle Magique called Love Is Free last month and did an EP with Royksopp called Do It Again in 2014.