Mariah Carey is talking aim at Eminem in her new single after the rapper suggested he'd bedded the singer in the lyrics of his track Bagpipes From Baghdad.

His crude remarks upset Carey's husband Nick Cannon, who attacked Eminem publicly, sparking a war of words between the two stars.

The rap star rhymed, "Mariah, what ever happened to us, why did we have to break up... Nick Cannon better back the f**k up. I'm not playing, I want her back, you punk."

But now Carey is keen to have the last laugh, calling Eminem "delusional" on her new track Obsessed - the first single from her upcoming album Memoirs of an Imperfect Angel.

She sings, "You're delusional, boy, you're losing your mind... It must be weed, it must be the E... Why are you so obsessed with me? Lying that you're sexing me."

And Carey really slaps Eminem with the line, "You're a mom & pop, I'm a corporation/I'm a press conference, you're a conversation," suggesting the rapper isn't a worthy suitor.