Beyonce Bounces Back in Rare Behind-the-Scenes Video (watch!) 1Beyonce provides a rare glimpse inside her comeback preparations for her first performance since giving birth in January to daughter Blue Ivy . Even she admits she’s a little nervous.

The 30-year-old singer posted a video on YouTube showing the preparations that went into her four-night stint at the new Revel casino in New Jersey over the holiday weekend.

“I’m enjoying being a mother so it’s like going back to my old job, and it’s a little strange,” she says. “But it’s important that you don’t lose yourself and still have your own passions. And so I’m back to work, I’m back to business.”

Indeed, the video shows her exercising, going through dance routines with choreographer Danielle Polanco and warming up her voice to sing.

“We’re basically warming her up and getting her back into shape,” Polanco says. “Stretching her out . . she hasn’t been working out in I don’t know how long!”

While the video is clearly edited to show Beyonce in charge, it’s pretty much cinema reality. She wears no make up and is dressed in tights and workout clothes.

“I haven’t sung this for a year,” she says warming up for her song “Halo.”

“I am a little nervous,” she says.

From the looks of things, momma Bey looks like she has everything under control. Check out the video.