BRITNEY SPEARS TALKS MILEY CYRUS DUET, HER HOT BOD & HER LAS VEGAS SHOW: “I WANT TO BRING MY GOODS TO THE TABLE” Spears admits that she had to leave her comfort zone to shoot the video for “Work Bitch.”

“My choreographer actually, when I was doing the rehearsals for this video, he was like, ‘Britney, you are not a sweet mommy in this video. You are nasty bitch mommy in this video,'” the pop star said in an exclusive sit-down with E! News‘ Catt Sadler in her dressing room at the iHeartMusic Radio Festival in Las Vegas on Saturday.

“And I was like, ‘OK…OK!” Britney gasped, her eyes growing wide as she imitated herself reacting to being told she had to get down and dirty.

“When you start to feel the charcter, you start to feel silly, ’cause you’re like, ‘This isn’t me, I’m not like all like this,'” Britney explained, “moving all sexually and stuff like that, so as ‘mommy’ you feel really awkward doing that.”

But “once you get out there and the camera starts rolling, you just kind of feel it out and you do it. But when I watch playbacks sometimes, I’m like, ‘Who do I think I am?! Who the hell do I think I am?!'”

You’re Britney, bitch!

And now she’s bringing her talents to Las Vegas, to start a two-year concert residency at Planet Hollywood in December.

“It seemed like the ideal job to me because I felt like when I was on tour, I’m in a different bed every night…”It felt kind of ideal to be set in one place,” the mother of two told Catt, adding that Vegas will probably be a “second home,” not her primary residence.

Asked what sort of theatrics she has planned, Britney said, “The shows here are so incredible, I really want to bring my goods to the table.”

Speaking of her goods, the 32-year-old singer joked about heading into rehearsals, “I’m gonna shed 30 pounds next week!”

But there really is no big secret as to how Britney has been maintaining that slammin’ bod of hers lately: Moderation.Follow @Infocelebrity on Twitter!

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