Any time either Eminem or Rihanna takes the stage, there's going to be a memorable moment. And when they link up at Sunday night's MTV Movie Awards for the first performance of "The Monster," well, that's bound to be big.

To honor the occasion, we take a look back at their relationship.

The Music
When Em and Rih Rih join forces, it's pure gold. Or, pure platinum. Pure multi-platinum, actually.

The two first hooked up for 2010's "Love the Way You Lie," from Em's Recovery. The song was an instant smash, and eventually topped the charts in more than 20 countries. It's the best-selling song of each of their careers and has sold more than 11 million copies.

They followed up that same year with "Love the Way You Lie (Part II)," which was included on Rihanna's Loud. It was neither released as a single nor given a music video, and so it didn't mirror the success of the first. Two years later, "Numb," from Rih's Unapologetic, brought them together again.

It was with "The Monster," though, that they matched the success of "Love the Way You Lie." The fourth single from Slim's The Marshall Mather LP 2 features Rihanna belting an infectious hook between the Detroit rapper's fiery verses. It's already sold three million units domestically, and hit #1 in a dozen countries.

The Performances
In addition to getting together for the music videos for "Love the Way You Lie" and "The Monster," the powerhouse tandem have appeared together on a handful of occasions — but not so often that when it happens, it's not ...

When you have an amazing, hilarious host for the MTV Movie Awards like Conan O'Brien, you can expect one thing: the unexpected. If you expect two things or more, though, here are some of the other things you might expect:

An Epic Opener
Not that we're going to drop any spoilers, but we've heard from a little red-headed bird that the opening to the Movie Awards is going to be huge. This is one you'll want to watch live.

Fire
In the tradition of MTV stars like Beavis, Conan will be bringing fire to the Awards, with multiple explosions and nearly everything (on stage) getting set on flames. O'Brien has promised that at the 40 minute mark he will be seriously injured by the fire, so look forward to that.

Amazing Parodies
Conan is an old hand at the art of the movie parody, and the ones from MTV Movie Awards past are classics. Put the two together, and you've got movie-making-fun-of magic.

Something With Thor
Speaking of parodies, we're getting the weird feeling something will involve the mighty Thor.

A Duet With Eminem
As revealed earlier, Eminem will perform selections from Broadway musical "Guys & Dolls" with Conan. We do have a picture we photoshopped of this happening, so it must be true.

Hittin' On The Ladies
With so many babes in attendance, the notoriously randy Conan is sure to point out some of the hotness in the audience. Hopefully he points out some of the beefcake as well as the cheesecake; and maybe some of the ...

Good news, "Funny People" fans: Judd Apatow and Eminem will finally be reunited at the MTV Movie Awards. As Apatow tweeted:

Before you cry, "random" the duo did work together on Judd Apatow's 2009 directing and writing effort "Funny People," where the rapper made a cameo as himself. But with a few years in between, what will Mr. Mathers and Mr. Apatow be talking about when they sit down at the big show?

Planning A "Funny People" Sequel
Since Apatow has already ventured into the world of sequels and spin-offs with "This Is 40" — which followed characters from hit movie "Knocked Up" — why not also have a "Funny People" spin-off focused on Eminem's classic movie character, Eminem? You could call it "Serious People," maybe? We'll leave the titles up to the professionals.

Tips For Em's "Monster" Performance
We don't have confirmation that Apatow is Eminem's vocal coach, but there's no reason to think that the many-talented man couldn't also help warm up the rapper's vocal chords. At the very least, he could psych him up for his performance. Maybe Ivan Reitman could do the same for Rihanna?

Whereabouts Of That Missing Plane
It seems like every celebrity, from Courtney Love to James Cameron, has a theory about missing Malaysian Airlines Flight 370, so perhaps Apatow and Eminem could hash out their own guesses while waiting for Channing Tatum to accept the trailblazer award.

Planning A Reboot Of "Guys and Dolls"
We've already confirmed that Conan O'Brien thinks Eminem is a "Guys and Dolls" fanatic, so why not hook up with Apatow to direct a ...

On a night as big as the 2014 MTV Movie Awards, you need to get as close to presenters like Nicki Minaj and Seth Rogen, nominees like Channing Tatum and Shailene Woodley and even your host Conan O'Brien as possible.

That's why tonight MTV is bringing you the All Access Live Stream, the place to get an exclusive look at action inside and outside the Nokia Theatre.

The All Access Live Stream is a second-screen co-viewing experience meant to bring you to the MTV Movie Awards red carpet and inside the venue with the help of 17 different camera angles. You'll be able to flip through all of the angles as you like, or you can watch the MTV Cut, a curated mix that will find the best behind-the-scenes moments for you.

You'll be able to watch the feeds through Movie Awards night — even during the show — but you'll have to tune into MTV at 9 p.m. ET/PT to see what's going on inside the big room at the Nokia Theatre. It's the only way you'll be able to catch never-before-seen clips from "The Amazing Spider-Man 2" and "X-Men: Days of Future Past."

On top of all of the amazing things planned for the 2014 MTV Movie Awards, there's a whole lot going on beforehand during the live pre-show. That's where you'll be able to get your first look at all of the celebrities making appearances at the show, as well as an exclusive clip from "The Fault in Our Stars."

Watch The Movie Awards All Access Live Stream Now!

The ...

Prepared to be terrified. Eminem and Rihanna are dealing with their internal demons tonight at the 2014 MTV Movie Awards, and they just shared a sneak peek from their rehearsal.

Rih Rih sneers at the camera in Converse, a white tee and jeans, while Em leans on her shoulder, tipping his head back as if he were saying "just try to mess with me."

The duo will be unleashing their duet "The Monster" at the show, airing at 9 p.m. ET/PT on MTV. Unless, that is, Em goes with a rendition of Broadway hit ...

twenty one pilots will also perform at the show, playing "Car Radio," and Zedd and Ellie Goulding will team up to play selections from the "Divergent" soundtrack.

Start the summer movie season with the 2014 MTV Movie Awards, hosted by Conan O'Brien, Sunday, April 13 @ 9/8c! Get ready for the show with exclusive MTV Movie Awards Takeover movie previews. Then, during the 2014 Movie Awards show, watch our All-Access MTV Movie Awards Live Stream on MTV.com.

There's only a few more hours left until Conan O'Brien kicks off the 2014 MTV Movie Awards and there's a roster of Hollywood's finest joining in on the action. But before the actors come up to accept their Golden Popcorns, they're going to need a proper introduction.

That's where tonight's presenters come in. We'll see tons of celebrities like Amanda Seyfried, Ansel Elgort, Rosario Dawson, Self Rogen, Dave Franco, Cameron Diaz, Kate Upton, Leslie Mann, Miles Teller, Jordana Brewster and Aaron Taylor-Johnson go onstage to honor their colleagues.

However, these people need introductions too. So that's why I took it upon myself to do it for them. These are some A-listers you can look forward to at 9 p.m. ET on MTV:

Lupita Nyong'o

Age: 31

Movie Awards accolades: She's nominated for Best Female Performance this year. Wish her luck! Not that she needs it...

What she'll be presenting: Best On-Screen Transformation, which may go to either Christian Bale, Elizabeth Banks, Jared Leto, Matthew McConaughey or Orlando Bloom.

Where you'll see her next: Nothing official yet!

Shailene Woodley

Age: 22

Movie Awards accolades: She's new to the Movie Awards.

What she'll be presenting: Woodley will join her "The Fault in our Stars" co-star to introduce twenty one pilot's performance of "Car Radio."

Where you'll see her next: She'll be in "The Fault in our Stars," out June 2014.

Jared Leto

Age: 42

Movie Awards accolades: This is Jared's first time at the MTV Movie Awards, where he is nominated for Best On-Screen Duo with Matthew McConaughey and Best On-Screen Transformation in "Dallas Buyers Club."

What he'll be presenting: ...

Brace yourselves: another wedding is coming to

Tonight's installment, titled "The Lion and the Rose," features the long-awaited, much-hyped nuptials of Joffrey Baratheon and Margaery Tyrell. It's the third "Thrones" wedding in five episodes, the second "Thrones" wedding in King's Landing, and the first "Thrones" wedding since the night Robb Stark lost the war and his head.

But it's not all matrimonial merriment tonight on "Thrones," as the episode's synopsis reveals:

Tyrion lends Jaime a hand. Joffrey and Margaery host a breakfast. At Dragonstone, Stannis loses patience with Davos. Ramsay finds a purpose for his pet. North of the Wall, Bran sees where they must go.

What does all of that mean? Let's break it down with a few predictions for tonight's episode:

1. Tyrion lends Jaime a hand.
Let's not take this one too literally. After all, Jaime just received a new hand in last week's premiere, thanks to the golden limb affixed to his stump by Maester Qyburn. Instead, let's look at this as Tyrion helping Jaime out with a problem. What's Jaime's biggest problem right now?

Cersei is an issue, for one. But there's not much Tyrion can do in that realm, since his "sweet sister" has nothing but hate in her heart for the Master of Coin. Still, it's been a long time since Jaime has been in the company of a woman — and based on past experiences, we know Tyrion can make arrangements in that department.

Is Tyrion about to go from Imp to pimp? Or is something else going on here?

2. At Dragonstone, Stannis loses ...