The "Roar" singer covers the latest issue of Entertainment Weekly, donning a leather sleeveless top and surrounded by shirtless men.
In the wide-ranging interview, she chats about how the 36-year-old crooner was the inspiration behind the track "Legendary Lovers" on her album Prism.
"I actually wrote it in an email one time, and after I wrote it I looked—we had a long courtship before anything was [public], just writing letters to each other and seeing 'legendary lovers,' it sounded so nice," the 29-year-old pop star reveals.
"Some things float into my mind, and I process them, and [then] I make songs about them," she added.
Can you say, awww?
Perry also recently admitted that she is "dating her crush" in the November issue of W magazine.
"I had a crush on him for a long time," she said.
It's been a very big week for Perry: Prism debuted at No. 1 on the Billboard 200, selling 286,000 copies, according to Nieslen SoundScan. This is Perry's best ever first week sales and gives her back-to-back No. 1 debuts; Teenage Dream hit the top spot in August 2010.