Will Nicki Minaj And Lil Wayne Finally Kiss At Billboard Awards?

What happens in Vegas, stays in Vegas. Unless the cameras are rolling and it's the Billboard Music Awards.

Among the artists up for prizes and set to perform at the Sin City-set show, the event will also hand out awards to some of the industry's biggest icons, including Prince (Billboard Icon Award winner) and Madonna (Top Touring Artist winner). The fete will go down at the MGM Grand Garden Arena in Sin City, with "30 Rock" star Tracy Morgan set to host. Need a little cheat sheet for what else will happen when the show airs at 8 p.m. ET on ABC? Well, MTV News has your back.

A Who's Who
Wondering who might be attending the festivities? These presenters never got a party invite they didn't respond "yes" to. So, who will be handing out the prizes this weekend? The list of presenters includes luminaries like Cee Lo Green, Kelly Rowland, Hayden Panettiere, Chloe Grace Moretz, Ke$ha, Carly Rae Jepsen, Psy, LMFAO's Sky Blu and Wiz Khalifa.

Going Stag
Justin Bieber might be hard at work on new music, but he'll take the stage and perform an unreleased Believe mid-tempo jam, "Take You." Will he run into Selena Gomez at the bash? Yes! She's set to perform "Come & Get It."

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Other highly anticipated performances include, Chris Brown ("Fine China"), Icona Pop ("I Love It"), Bruno Mars ("Treasure"), Miguel ("Adorn"), Macklemore & Ryan Lewis ("Thrift Shop"), Ed Sheeran ("Lego House") and his pal and tourmate Taylor Swift ("22").

Friends With (Musical) Benefits
Not enough Bieber for you? Well, he's got your back. He'll take the stage with will.i.am (and hopefully not as a hologram) to bring "#thatpower" to the show. Other big match-ups will include Christina Aguilera and Pitbull, along with a special guest, for "Feel This Moment," David Guetta, Ne-Yo and Akon for "Play Hard" and Pitbull will be back for more. He'll also take the stage with Jennifer Lopez for "Live It Up."

Perhaps what might go down as the buzziest team-up will be when Nicki Minaj and Lil Wayne perform "High School." Will they finally kiss? Only time will tell.

And The Winner Is...
We don't know who has won anything yet, but the odds are in the favors of Taylor Swift, Fun. and Maroon 5, as they are all top nominees of the night with 11 nods each. But don't count Adele out. Despite flying mostly under the radar, she still managed to snag a handful of awards for her 2011 release, 21, including Top Billboard 200 album.

"We Can't Stop"
Miley Cyrus just might steal the show. She announced the name of her Mike Will Made It-produced single, "We Can't Stop," Thursday night and has long-teased that she plans on doing something at the show to promote it. She's billed as a presenter, but she noted, "Big announcement about #wecantstop coming @billboard." Maybe the hype is for nothing and she'll just pull a Macy Gray.