Marc Malkin Exclusive: Robsten Backstage, Rob jigs to Single Ladies

Despite an online leak and some Kanye West hijinks, nothing could upstage an appearance by Robert Pattinson, Kristen Stewart and Taylor Lautner as they thanked fans and introduced the trailer for New Moon.

But what were they doing backstage? Well, one of the New Moon threesome was dancing to "Single Ladies," that's what. Read on to find out what happened when they weren't on camera...

Rob and Kristen weren't about to give any indication they were a couple. Even backstage, there was no PDA. But they did sit together and chat for a bit.

They were silent when Lady Gaga came into area covered in fake blood after her performance. But they both giggled when Gaga came out from behind makeshift dressing room in her face-covering red lace get-up.

After presenting the New Moon trailer, Rob, Kristen and Taylor came back to talent holding area for photos.

And that's when Rob did a little jig to "Single Ladies" while Beyonce's performance was on monitor.

Then they were gone. I'm told they were taken to their cars and may have been going to fly back to Canada. Marc Malkin E! OnLine

Thanks to Mr. Malkin for the ditties via Twitter. Single Ladies? Really Rob? Hope a vid of Rob jiggying will find its way to the blogs. I would surely wanna see that! LOL.