One of the most earnest moments on Katy Perry's Prism LP was "Double Rainbow," the simple, ethereal ballad she co-wrote with Sia and Greg Kurstin. Sia had nothing but praise for her time spent working with Perry and of their friendship as well, describing the pop star's songwriting style as "analytical" and reflecting on how their songwriting collaboration almost didn't work out because of how different their styles are. "I really wanted her to sing some of my songs," she told RS. "Mostly because I love her as a person." Perry also almost sang Sia's collaboration with Diplo and the Weeknd, "Elastic Heart."
not this song getting acclaim!
