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By Dana Flax

Sorry, Johnssica fans. It looks like John Mayer will not be reuniting with his ex-girlfriend Jessica Simpson, according to a Mayer pal.

When People asked Mayer's friend Rob Dyrdek, star of MTV's "Fantasy Factory" (and the singer-songwriter's accomplice in one of his many clever paparazzi stunts), whether he thought the two would get back together, Dyrdek replied, "Absolutely not."

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Mayer and Simpson, who dated on-and-off for about a year and a half, finally called it quits in 2007, disappointing fans who were looking forward to a rock 'n' roll "Where You Are"-style John and Jessica duet.

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But hold onto your earbuds, folks. People pressed further, noting that an unidentified source claimed the two "have been in touch," and Dyrdek backpedaled, saying he "wouldn't rule out" a reunion; "I'm just saying [I don't think so]."

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In the meantime, we'll be lying in wait, reading Mayer's every tweet in sweet anticipation.

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