British singer-songwriter Anne-Marie and former One Direction Niall Horan have released a new acoustic version of their track, “Our Song." It was released on 21 May 2021 as the third single from Anne-Marie's upcoming second studio album, "Therapy." Musicians Niall Horan and Anne-Marie said they wrote and recorded their new collaboration "Our Song" in just two hours. Anne-Marie said she came up with the concept for the tune as she can’t listen to a song that reminds her of her ex-partner, who she now hates. "When I was on the way to the studio, a song came on the radio that I had with my ex, who I now hate, and I can’t listen to it anymore without gritting my teeth,” says Anne-Marie. The track was produced by TMS and was written by the two singers and Philip Plested, and the three members of TMS. The ballad's lyrics have the vocalists reminiscing about a past relationship. The song has been faring well on the charts as on the UK Singles Chart, "Our Song" debuted at number 22, giving Anne-Marie her 13th and Horan his 6th top 40 hits. On the Irish Singles Chart, the song debuted at number 10, giving Anne-Marie her fourth and Horan his sixth top 10 entry.