"This is a song that's been brewing inside me for years, that has finally come to the surface," she said in a statement. "I was inspired to finish it now, rather than save it for my next album, because now more than ever, there is a need for our world to unite. I know that together we can rise above the fear - in our country, and around the world."
Excited for the start of the Olympics, Perry added, "I can't think of a better example than the Olympic athletes, as they gather in Rio with their strength and fearlessness, to remind us how we ALL can come together, with the resolve to be the best we can be. I hope this song can inspire us to heal, unite, and rise together."