Looks like Slim Shady is back to his old tricks! On Eminem's upcoming track, "A Kiss," the rapper slams today's hottest artists ... including Lady Gaga, Justin Bieber and Katy Perry.

In the new song, filled with foul language, Eminem, 38, says:

    “Aw, hell Shady, he’ll tell her like it is. So tell Katy Perry he’s on her tail, he’s tailgating. These bells are my mating call, and I’m here, bell’s waiting.

    And tell Lady Gaga she can quit her job at the post office. She’s still a male lady. Wouldn’t f**k her with her d**k. You heard it, the verdict’s in. He’s allergic to divas, he’d take meat cleavers to ‘em. He don’t give a damn about Bieber doin’.”

"A Kiss" is performed by Bad Meets Evil which is Eminem teaming up with rapper Royce Da 5'9".

Find out when the song will be hitting store shelves ... after the jump.