Eminem puts Bieber in his sights

Justin Bieber has become the latest star to suffer the wrath of Eminem after the rapper described him as "evil" in his new song.

The 8 Mile star is known for taking aim at celebrities in his lyrics, famously poking fun at Christina Aguilera, Jessica Simpson and Britney Spears in the past, while his new song A Kiss mocks Lady Gaga and brands her a "male lady".

It has now emerged Bieber is also a target in the track, with Eminem branding the teenage pop singer "evil" and a "demon" in the song.

Eminem raps, "Him (God) don't give a damn about Bieber, do Him?/What a demon, a behemoth, evil just seems to be seeping through him."

But the hip-hop star's celebrity comments are not all negative - the lyrics reveal he is a big fan of pop star Katy Perry: "Aw hell Shady, he'll tell it like it is/So Katy Perry he's on her tail/He's tailgating."

The song is part of Eminem's Bad Meets Evil side-project, a collaboration with rapper Royce Da 5'9".

-AAP