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Despite multiple online reports - including one by X17 - Britney's first single off her Circus album, "Womanizer," will NOT make its radio debut today...

Aww! That was one rumor we were hoping was true.

Gina Orr from Jive Records tells X17 that "the mix is still being finalized for Womanizer."

Jive declined to specify the release date...

Guess we'll hafta wait a little bit longer to hear the new track!