B.o.B Promises 'Spectacular' VMA Performance With Hayley Williams

'I'm gonna attempt to levitate,' the 'Airplanes' MC jokes about first-ever set with Paramore collaborator on Sunday.

The clock is counting down to Sunday's VMAs, and for Video of the Year nominees B.o.B and Hayley Williams it means finally meeting for the first time.

The two collaborated on the rapper's top-five hit "Airplanes" but have never met — they recorded the song and shot their parts for the video separately. They're set to meet Saturday afternoon (September 11) in Los Angeles when they rehearse for their performance at the 2010 Video Music Awards.

"I think just the fact that me and her are performing on the stage at the same [event] is gonna be spectacular," B.o.B told MTV News on Friday about anticipation for his appearance with the Paramore singer.

B.o.B is also set to perform with Bruno Mars, bringing their #1 collaboration "Nothin' on You" to the Nokia Theatre. And the combination performance, comprised of the two smash collabos, is among the most-anticipated. The Atlanta lyricist is excited about his prime-time performance and said he was thinking about a new wrinkle for his set.

"I'm gonna attempt to levitate," he joked. "I don't know if the dynamics of the room will allow me to do that, 'cause it requires me to really pull from the sky."

B.o.B is one of the most-nominated artists at the VMAs, scoring nods for Best Male Video and Best Hip-Hop Video, among others. He actually found out about the recognition via Twitter. "I was just on Twitter checking to see what's up, and then I saw I got nominated, and I was like, 'All right, don't mind if I do,' " he shared with us last month.

The potential big haul left the melodic MC feeling special.

"It's very special to me," B.o.B said. "I think it's a lot more special than the success of the singles, because this reflects the work I've put in over the years and the word of mouth I've helped create. It's definitely amazing. I'm trying to find the words to explain it, but I can't. It's inexplicable. I'm a real simple man, so, you know, I accept every gift with generosity and gratitude."

The 27th annual MTV Video Music Awards will be broadcast live from the Nokia Theatre in Los Angeles on Sunday. The party starts with MTV News' VMA Pre-Show at 8 p.m., followed by the main event at 9 p.m. ET.