Music News Pink thanks Sia for new song 'Waterfall' with makeup-free selfie 03/13/2017 P!nk displayed her natural beauty in a makeup-free selfie on Instagram Friday as she thanked fans for supporting her new song from producer Stargate featuring Sia titled "Waterfall." Read More RELATED NEWS From Tokyo to Las Vegas: Taylor Swift's flight to Super Bowl LVIII'Chucky' Season 3 trailer released by USA Network and Syfy'Quantum Leap' Season 2 visits L.A. riots, Salem Witch Trials, and more TAGS: P!nk