Backstage at the Victoria's Secret Fashion Show!

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The annual Victoria's Secret Fashion Show airs tonight on CBS, and we went backstage as both the beautiful Victoria's Secret Angels and superstar musical guests got ready for the big show!

Adam Levine's band Maroon 5 performed as his girlfriend model Anne Vyalitsyna walked the runway -- Levine shared that he loves the annual event because of its fun vibe as opposed to more serious runway shows.

"It doesn't fall into the pitfalls and the traps that all the other shows kind of fall into where it kind of gets very serious, and I just like how everyone's smiling and laughing and dancing," he says. "It's kind of the anti-fashion show fashion show in a weird way. I think that's the best part about it."

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Angels Lily Aldridge and Alessandra Ambrosio gave us a preview of what's to come in tonight's dazzling show.

"We have beautiful costumes, this year they have the ballet which I'm in -- I'm so excited," Aldridge says. "We have the fantasy bra that's always a big part of the show."

This year the $2,500,000 fantasy bra is being worn by supermodel Miranda Kerr.

"It really is like a piece of art. It's so beautiful," Kerr says. "It's actually an honor, it really is. It's like a very special thing to be asked to wear the Victoria's Secret fantasy bra. I'm just hoping that my wings are going to be OK because they're quite heavy," she laughs.

MORE: Christina McLarty Gets Her Victoria's Secret Wings

Check out the video for more backstage footage of the gorgeous Victoria's Secret models, as well as to see what happens when Kanye West enters the building!

The 2011 Victoria's Secret Fashion Show, featuring musical performances by Jay-Z, Kanye West, Maroon 5 and Nicki Minaj, airs tonight at 10 p.m. on CBS.