John Mayer in guitar shop w fan and Katy PerryA young teenage girl was admiring the acoustic guitars in a New York City music store when John Mayer wandered into the shop with Katy Perry.

A salesman at Rudy’s Music Shop mentioned to Mayer that there were a few big fans in the next room, so he decided to go talk to them.

Julie Fermin and her two friends took photos with the rock/pop stars and chatted about playing guitars.

After hearing Julie admiring the Epiphone six-string while remarking that she couldn’t afford it, the singer-songwriter secretly paid for it before he left and said to reveal the fact only after he’d gone.

(SEE more photos and details in the UK Sun)

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