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Katy Perry's alleged broken romance with John Mayer doesn't mean the former couple can't be friends -- they were spotted together at the FYF Fest in Los Angeles on Saturday night.

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The two singers checked out M83's headlining show at the indie music festival and posed for pictures.

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And one fan says the romance isn't over, telling blogger Perez Hilton Perry and Mayer were all over each other.

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Perry was reportedly left heartbroken after Mayer ended their short-lived romance last month. Neither Mayer nor Perry have addressed the romance or the break-up reports.