06/07/2011 11:36 am ET | Updated Aug 07, 2011

Eminem: 'A Kiss' Calls Lady Gaga 'Male Lady,' Disses Justin Bieber (LISTEN)

In his heyday, Eminem was known for his sensitive tales of hard knock living on the inside of his albums -- and his boastful, explicit callouts in his mega singles. Now that he's back to his Grammy-winning best, Slim Shady has slipped back into his diss track ways.

In his new single, "A Kiss," a leaked track off his "Hell: The Sequel" record with Bad Meets Evil partner Royce Da 5'9, Eminem goes straight for the pop culture jugular, dissing on Lady Gaga by dredging up the old, ridiculous rumors that she is a hermaphrodite.

"Tell Lady Gaga she can quit her job at the post office/ She's still a male lady," he raps. "Wouldn't f*ck her with her d*ck/ You heard it/ The verdict's in."

Well then. Of course, with the number one album in the world right now, Gaga probably doesn't mind what Shady has to say.

The rapper also takes on Justin Bieber in the song, saying that "evil seeps through him," and name checks Katy Perry -- though he's much friendlier in his address to her, to say the least.

Meanwhile, in perhaps even more ridiculous Eminem news, the Los Angeles Times reports that "Training Day" director Antoine Fuqua is negotiating a deal to direct the rapper's boxing movie, "Southpaw."

Warning, strong language below. LISTEN: