Sia and Pink Join Forces on ‘Waterfall’ from Stargate: LISTEN Andy Towle March 10, 2017 Leave a Comment Stargate are Erik Hermansen and Mikkel Eriksen, the production team behind Katy Perry's "Firework", Rihanna's "Rude Boy", and Beyoncé's … [Read more...] about Sia and Pink Join Forces on ‘Waterfall’ from Stargate: LISTEN