The pop star's new scent will hit stores next month (Aug13) and represents a "powerful, edgy, sophisticated" style.
The singer tells Wwd.com, "Killer Queen has been in my vocabulary since I was 15. Freddie Mercury painted the lyrics of this woman who I wanted to be. She seemed very powerful, and she captivated a room when she walked in.
"I feel like, after all this time, it was appropriate to use that name in association with something I did. I feel like I'm falling, finally, into that woman Freddie painted."