For the singer�who's written songs for not only Perry, but Ellie Goulding, Cher, Kesha and Britney Spears �the difference is actually very simple. "When I'm writing for other people I have to play it safe," she said.

"When I'm dealing with Britney Spears and Katy Perry, these massive brands, like really very Coca-Cola, you know what I mean? There are certain kinds of standards, There are risks you can take, and there's risks that you don't. And I think I'm interested in taking a little more risk in my own music."