Under the excellent pseudonyms "Tony Primo and Nixxie," Metronomy's Joseph Mount and Robyn have released this new wave-y track "The Hardest Thing to Do," featuring a really fabulous karaoke-style music video that will leave you on the edge of your seat. The song is featured in the new film Partisan, which includes a score by Oneohtrix Point Never and additional music from Jarvis Cocker and  Sebastian Tellier (who, per Brooklyn Vegan, also used pseudonyms). Watch above and start lining up your Sing Sing plans for this weekend.