"I decided to go buy stuff for my house because I just moved," Zedd recalled, "so I have an empty house, and I had to pee. I had my engineer with me, so I was like, 'I hope they have a bathroom.' He was like, 'Just go to the studio over there,' which was across the street from my studio.

"So I walk in, and John, the head of our label, who had just signed Selena, was there' He was like, 'Have you ever met Selena?' That was literally the next thing he said' So he introduced me to her, and was like, 'Hey, she's cool, maybe we should make a song together.' And then like a week later, we start working on a song. All because I had to pee."