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Britney Spears performs during 'The Circus Starring Britney Spears' tour at AmericanAirlines Arena on March 7, 2009 in Miami, FloridaWireImageAccess Hollywood

LOS ANGELES, Calif. -- Less than 48 hours after premiering her penalization recording for "Hold It Against Me," Britney Spears has free a 10-second piece of her rumored second "Femme Fatale" single, "Inside Out."

Dr. Luke, the song's producer, initially posted the vexer on Twitter and the pop princess re-Tweeted the link on Friday.

PLAY IT NOW: Music Video Sneak Peek: Britney Spears - 'Hold It Against Me'

While no additional info regarding the strain were provided, Britney's longtime manager, Larry Rudolph, said fans are "in for a actual treat" with the next single.

"We have a second strain that I think we're gonna modify up swing discover before the medium drops," Larry told MTV News on Thursday. "I can't feature with 100 percent certainty, but I think we probably will... It is a monster. It rattling is.

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"I don't think I've been this agog about releasing a Britney azygos in many, many eld -- it's that good," Larry added. "I haven't heard a test mix of it, but I should get it in the next day or two. So far, what I've heard is just extraordinary. It rattling is amazing."

The 29-year-old superstar has been hitting the studio with the Negroid Eyed Peas' Will.i.am and both artists seem to be thrilled with the collaboration.

"In the studio with @britneyspears today. we recorded another strain for #femmefatale. that's 2 bangers," Will.i.am Tweeted on Thursday, along with a photo of himself with the "Circus" singer.

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"@iamwill We make sweet sweet music...." Britney responded on Thursday.

As previously reported on AccessHollywood.com, Britney debuted the penalization recording for her newborn single, "Hold It Against Me," on MTV and Vevo.com on weekday night. CLICK HERE for AccessHollywood.com's recap of the video!

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Britney's upcoming album, "Femme Fatale," is slated to drop March 29.

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MORE ACCESS ON THESE TOPICS: Britney Spears - Will.i.am - Music - Twitter

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