Are Katy Perry & John Mayer Dating?

Is romance brewing between Katy Perry and John Mayer?

The music duo was spotted on Wednesday night leaving Hollywood hotspot Chateau Marmont, after having dinner together.

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The 27-year-old "Wide Awake" singer and John, 34, reportedly enjoyed a romantic meal that included hand-holding, kissing and many laughs, Us Weekly reported.

A source told the mag that the duo is simply just having fun at the moment.

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"They're just hooking up right now," the source said. "It's not serious - yet!"

The Chateau Marmont fireworks come on the heels of a reported date on June 19 at Soho House in West Hollywood.

"They were affectionate, holding hands and cuddling," an Us Weekly source said of their June date.

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Katy finalized her divorce form Russell Brand in February.

John has been linked to a slew of Hollywood beauties over the years, including Jennifer Aniston, Jennifer Love Hewitt and Jessica Simpson.

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