13 years ago today, Sia released 'Elastic Heart.' 'Elastic Heart' was written for 'The Hunger Games: Catching Fire,' arriving on October 1, 2013 as the second single from the film's soundtrack, after Coldplay's 'Atlas.' RCA, Republic, and Lionsgate released it ahead of the film's November premiere. Sia Furler wrote it with Diplo (Thomas Wesley Pentz), Andrew Swanson, and The Weeknd (Abel Tesfaye), who also sings on the track. Diplo and Greg Kurstin produced the song, with Kurstin engineering at Echo Studio in Los Angeles and Sia Furler's vocals recorded at Hot Closet Studios. Diplo and Swanson programmed the drums at Mad Decent in Atwater, California. Critics described the result in different ways. The Village Voice called it a grand, full electropop production, Fact heard a pop song that bounces like rubber, and Rolling Stone's Julianne Shepherd heard a trap song. Stereogum noted that The Weeknd sounded more vulnerable than usual. The collaboration debuted at number 79 on the UK Si...