Charli XCX joins in with the bragging on the rowdy hook. This was the second breakout hit for the British singer following her contribution to Icona Pop's, "I Love It
." "It's been massively different for me, on a personal level and on a Charli XCX level," Charli told Billboard
magazine. "With 'I Love It,' there was never a plan for me to go and write for Icona Pop - they were just there, and it happened, and no one really knew what was going on."
"Then it was a bit of a mess that turned into a stressful experience, and something that I didn't really enjoy," she continued. "They were traveling the world and it was great, but I never felt part of that process, partly due to the nature of the song and how it sounds. I never really felt like it was my song."
"With Iggy, it's been the flip side of that," Charli added. "From the start, Iggy has been like, 'This is your song as well as my song,' which I think is very nice of her, and it made me very excited about the song. I feel valued."