MTV Video Music Awards Cheat Sheet: Everything You Need To Know

Here's a handy reminder of 2009's big nominees, performers, premieres and presenters.

When the 2009 MTV Video Music Awards blast off at Radio City Music Hall tonight, you'll once again get to see hot performances, big celebrities and unpredictable moments all in one place. MTV News has been covering all the breaking developments since we announced in mid-July that the show would return to New York with Russell Brand as host. And honestly, in the past two months there have been so many high-profile VMA announcements that our heads are spinning.

Do you know everything there is to know about the 2009 VMAs? If not, don't worry! We're coming to your pop-culture rescue with our trusty VMA Cheat Sheet.

The Intense Nominee Battles

The big VMA clash this year will be between two female pop and fashion stars: Beyoncé and Lady Gaga, who nabbed nine nominations each in categories like Video of the Year and Best Female Video.

Another intense showdown pits two of the biggest names in the hip-hop game, Eminem and Kanye West, against each other. Both garnered four nominations apiece, including nods for Video of the Year, Best Male Video and Best Hip-Hop Video.

VMA vet Britney Spears locked down seven Moonmen nods for her "Womanizer" and "Circus" videos, while Coldplay received four. You can check out the full list of VMA nominees here.

The Epic Performances

Seriously, this year's lineup is just simply ridiculous. You've got Gaga, Beyoncé, Jay-Z, Taylor Swift, Pink, Green Day and Muse. All of them have got wicked shows in the works. Plus, we'll see Janet Jackson and a team of world-renowned choreographers paying tribute to the original King of the VMAs, Michael Jackson.

The details behind Gaga's performance are on super-duper secret lockdown, but speculation is ripe that the pop sensation will deliver a VMA show for the ages. Green Day have got a fiery performance planned, and Jay-Z's performance alongside Alicia Keys promises to be huge. At their rehearsal on Saturday, Muse busted out a brain-vibrating rendition of "Uprising," off their upcoming album, The Resistance.

The Indispensible Sneak Peeks

We know everyone wants their "Twilight" fix, and we will deliver. During the preshow (starting at 8 p.m. ET), Ashley Greene will be our special red-carpet fashion reporter, while Robert Pattinson, Kristen Stewart and Taylor Lautner will be on-hand to deliver an exclusive extended trailer from "New Moon." We've also got the first ever look at the behind-the-scenes documentary, "Michael Jackson's This Is It."

The Stars and the Secrets

Check out this list of presenters: Jennifer Lopez, Megan Fox, Shakira, Jack Black, 50 Cent, Andy Samberg, Jimmy Fallon, Kristin Cavallari, Pete Wentz, Gerard Butler, Tracy Morgan, Adam Brody, Alexa Chung, Jamie-Lynn Sigler, Cobra Starship's Gabe Saporta, singer Justin Bieber, Ne-Yo, Nelly Furtado, Chace Crawford, Leighton Meester and Miranda Cosgrove.

There are also going to be a bunch of surprises on the red carpet and at the VMAs themselves. We could tell you what they're going to be, but we've already revealed what will be on the entire first 30 minutes of the show. And besides, what's the fun in ruining the secrets? That's why you'll have to tune in tonight.

Watch the 2009 MTV Video Music Awards Preshow this Sunday, September 13, at 8 p.m. ET, followed by the big event, live at 9 p.m. Check out our interactive map of New York to see how the city is celebrating the VMAs all week long, and stay tuned for party coverage, concert reports, behind-the-scenes updates and more.