Cruz told MTV News that the then-little-known Kesha wasn't his original choice to collaborate on this song, but she seemed to be the best fit. "I was thinking about Lady Gaga at first," he said. "Then I went to a meeting with Dr. Luke and he was telling me about this new girl he was working with. She hadn't done 'TiK ToK
' or anything like that at that point. But I just thought she sounded really cool. A very unique-sounding voice. I like that with artists, that as soon as you hear them on a song on the radio, you know immediately who that is without having to be told. She looked really sexy, and I just thought she was talented. Her voice was awesome. It had this - I hope she won't mind me saying this, but her voice has this kind of yodely quality to it, the way that she does things and the way that she ends words. I just loved that quality about it."