It's not an even playing field by any measure, but the Eminem versus Mariah feud ended up taking ​an interesting turn. Eminem unleashed a fiery diss dubbed "The Warning," in which he goes after Mariah and threatens to leak some intimate voicemails and pictures verifying their relationship. Here's a brief timeline of the beef.

2002 Jeff Kravitz/Getty Images Eminem addressed Mariah in a song for the first time. "Superman" from Eminem's 3rd album, The Eminem Show, contained the following lyrics: “What you trying be? My new wife? / What, you Mariah? Fly through twice." (Eminem - "Superman") "I done came way too far in this game to turn and walk away, and not say what I got to say. What the f-ck you take me for a joke? You smokin crack? Before I do that, I'd beg Mariah to take me back" (Eminem - "When The Music Stops") But Mariah Carey denied the relationship on Larry King Live: "I hung out with him, I spoke to him on the phone. I think I was probably with him a total of four times. And I don’t consider that dating somebody."

2003 Jo Hale / Getty Images Mariah parodied Eminem on tour. Her Marionette Show showcased Eminem puppets. "Clown," from Carey's Charmbracelet album, contained some obvious shots at Em include the lines: "You should've never intimated we were lovers/ When you know very well we never even touched each other."​ (Mariah Carey - "Clown")

2005 FilmMagic / Getty Images Eminem responded to Mariah's Marionette Show diss on his own Anger Management Tour by playing voicemails alleged to be from Carey.

2006 WireImage / Getty Images Eminem reaffirmed his disdain for Mariah Carey on "Jimmy Crack Corn," from The Re-Up compilation LP: "Your mind’s on us like mine’s on Mariah. And y’all are just like her, you’re all f--king liars." (Eminem - "Jimmy Crack Corn")

2007 Scott Gries / Getty Images 50 Cent weighed in on the feud on "All of Me," which appears on Curtis. "Em predicted it all, I don’t know how he knew it. He said women from Hollywood they liars, liars, liars. You f-ck them, they get you heated, deny it like Mariah." (50 Cent - "All Of Me")