Two industry powerhouses, Sia and Diplo, link up on “Waving Goodbye” for the movie Neon Demon. As usual, Sia can do no wrong. The collaboration lends itself to the feel of ballad, but an EDM track at the same time. “Waving Goodbye” further proves that both Sia and Diplo are not to be doubted as artists, despite their mainstream appeal. Take a listen and you’ll be “waving goodbye” to any other summer anthem.