So, this is what’s really on Katy Perry’s mind. After the colossal house of candy and cliché that was “California Gurls,” we had pretty much written off Teenage Dream. But, as Vulture reports, Perry’s new single — which sort of just showed up on iTunes — means business. Rumored to be an indictment of her ex-boyfriend, Gym Class Heroes frontman Travis McCoy, “Circle the Drain” is every bit as cutting as its title.While it’s (completely unsurprisingly) a little over-produced for our taste, the song’s angry bluntness makes it a jarring kiss-off anthem in the “You Oughta Know” mold. “You fall asleep during foreplay because of pills you take,” sings Perry, before breaking it down: “I wanna be your lover, not your fuckin’ mother… I’m not gonna stay and watch you circle the drain.” Burn! Listen to “Circle the Drain” and decide whether it’s earned a place on your breakup mixtape after the jump.