Katy Perry might be penning a breakup song about her ex John Mayer, and Mayer seems to be taking that prospect in stride.
The "Wildfire" crooner, 36, famously took a lashing on ex Taylor Swift's track "Dear John" and rebutted with his song "Paper Doll."
But now, Perry, 29, from whom he split in February, might be trying her hand at the lyrical blast.
"There's no bad blood," the "Dark Horse" songstress told Cosmopolitan. "But I'm sure there will be inspired songs."
Mayer's response? Been there, done that.
"I have super strength for gang-ups. I'm fine, I'm fine," the crooner told TMZ on Tuesday. "That's what you're supposed to do, man. You're supposed to write songs. You're just not supposed to tell everybody you're doing it."
And the perennial playboy joked that he's actually supportive of that kind musical expression and its success on the charts.
"I actually want everybody's song to go No. 1," he quipped. "I actually purposely stopped writing hits to give other people a chance to have No. 1 songs. I just stand to the side."
The former aww-inducing lovebirds collaborated on the duet "Who You Love" from his "Paradise Valley" album last year and publicly gushed about working together on the track — and their relationship — in December.
The "Roar" singer and guitarist were spotted getting cozy in London on Saturday after the U.K. leg of her Prismatic World tour.